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  • Download Free Norton Antivirus 2012 with 6 months subscription

    - by Gopinath
    Norton, one of the most popular antivirus software Antivirus is now available as a free download with 6 months of subscription. Thanks to Facebook for teaming up with Symantec and providing Norton Antivirus 2012 for free to all its users. To grab your copy of Free antivirus, point your browser to http://us.norton.com/ps/loem/EN/Facebook/index.html and click on the download link. Without asking for any personal details or registration the download starts and you can follow the on screen instructions to install the antivirus. The antivirus is compatible with Windows PC and MAC OS. I tried installing on Windows 7 and the installation process started without any issues. But on Windows 8, the installer stopped after verifying the system requirements. The special offer also extends to Norton 360  which is available 50% discounted price. The original price for 1 year subscription of Norton 360 is around $90 and for Facebook users it’s available at $44.99. Update: Facebook is in partnership with many other antivirus vendors and providing antivirus software for free of cost. The other products are available for 6 months or more free subscription are: McAfee, Sophos Antivirus, Trend Micro. Please visit Facebook Security AV Market place for more details. Related: 5 Free Antivirus Applications For Windows

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  • How to Load commands into your powershell profile to run on starting powershell

    - by JohnyV
    Hi, I have found a way to load exchange 2010 powershell into powershell running on a windows xp workstation, however there are a few commands that need to run. I was wondering how I could load them into a profile somehow. These are the commands that I need to run before I can do any of the exchange things such as Get-Mailbox. COMMAND 1 $session = New-PSSession -Configurationname Microsoft.Exchange –ConnectionUri http://servername/powershell -Credential $user (it prompts you for a username and p/word then the next command) COMMAND 2 Import-PSSession $session Then I am able to run exchange 2010 commands such as Get-Mailbox. Anyway I can load these so that when I click on the powershell shortcut they preload the importing of exchange commands. Thanks

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  • Day 2 - Game Design Documentation

    - by dapostolov
    So yesterday I didn't cut any code for my game but I was able to do a tiny bit of research on the XNA Game Development Technology and the communities out there and do you know what? I feel I'm a bit closer to my goal. The bad news is today I didn't cut code either. However, not all is lost because I wanted to get my ideas on paper and today I just did that.  Today, I began to jot down notes about the game and how I felt the visual elements would interact with each other. Unlike my workplace, my personal level of documentation is nothing more than a task list or a mind map of my ideas; it helps me streamline my solutions quiet effectively and circumvent the long process of articulating each thought to the n-th degree. I truly dislike documentation (because I have an extremely hard time articulating my thought and solutions); however, because I tend to do a really good job with documentation I tend to get stuck writing the buggers. But as a generalist remark: 'No Developer likes documentation.' For now let's stick with my basic notes and call this post a living document. Here are my notes, fresh, from after watching the new first episode of Merlin second season! Actually, a quick recommendation to anyone who is reading this (if anyone is): I truly recommend you envelope yourself in the medium or task you're trying to tackle. Be one with moment and feel it! For instance: Are you writing a fantasy script / game? What would the music of the genre sound like? For me the Conan the Barbarian soundtrack by Basil Poledouris is frackin awesome. There are many other good CD's out there, which I listen to (some who even use medival instruments, but Conan I keep returning to. It's a creative trigger for me. Ask yourself what would the imagery look like? Time to surf google for artist renditions of fantasy! What would the game feel like? Start playing some of your favorite games that inspire you, be wary though, have some self control and don't let it absorb your time. Anyhow, onto the documentation... Screens, Scenes, and Sprites. Oh My! (groan...) The first thing that came to mind were the screens, I thought the following would suffice: Menu Screen Character Customisation Screen Loading Screen? Battle Ground The Menu Screen Ok. So, the thought here is when the game loads a huge title is displayed: Wizard Wars. The player is prompted with 3 menu items: 1 Player Game, 2 Player Game, and Exit. Since I'm targetting the PC platform, as a non-networked game to start, I picture myself running my mouse over each menu option and the visual element of the menu item changes, along with a sound to indicate that I am over a curent menu item. And as I move my mouse away, it changes back, and possibly an exit mouse sound. Maybe on the screen somewhere is a brazier alit with a magical tome open right beside it, OR, maybe the tome is the menu! I hear the menu music as mellow, not obtrusive or piercing. On a menu item select, a confirmation sound bellows to indicate the players selection. The Esc key will always return me to the previous screens or desktop. The menu screen must feel...dark, like a really important ritual is about to happen and thus the music should build up. 1 Player Game - > Customize Character(s) 2 Player Game - > Customize Character(s) Exit - > Back to Windows Notes: So the first thing I pick up here are a couple things: First and foremost, my artistic abilities suck crap, so I may have to hire an artist (now that i've said that, lets get techy) graphical objects will be positioned within a scene on each screen / window. Menu items will be represented grapically, possibly animated, and have sound / animation effects triggered by user input or a time line. I have an animated scene involving a brazier or fire on a stick IF I was to move this game to the xbox, I'd have to track which menu item is currently selected (unless I do a mouse pointer type thing.) WindowObject has a scene A Scene has many GameObjects GameObject has a position graphic or animation MenuObject is a GameObject which has a mouse in, mouse out, and click event which either does something graphically (animation), does something with sound, or moves to another screen.  Character Customisation Screen With either the 1 or 2 player option selected, both selections will come to this screen; a wizard requires a name, powers, and vestements of course! Player one will configure his character first and then player two. I considered a split screen for PC but to have two people fighting over a keyboard would probably suck. For XBox, a split screen could work; maybe when I get into the networking portion (phase 2 blog?) of this game I will remove the 2 player option for PC and provide only multiplayer and I will leave 2 player for xbox...hmm... Anyhow...I picture the creation process as follows: Name: (textbox / keyboard entry) - for xbox, this would have to be different. Robe Color: (color box, or something) Stats: Speed, Oomph, and Health. (as sliders) 1 as minimum and 10 as maximum. Ok, Back, and Cancel buttons / options. Each stat has a benefit which are listed below. The idea is the player decides if he wants his wizard to run fast, be a tank and ... hit with a purse.Regardless, the player will have a pool of 12 points to use. Ideally, A balanced wizard will have 5 in each attribute. Spells? The only spell of choice is a ball of fire which comes without question. The music and screen should still feel like a ritual. The Character Speed Basically, how fast your character moves and casts. Oomph (Best Monster Truck Voice): PURE POWAH!!! The damage output of your fireball. Health How much damage you can take. Notes: I realise the game dynamics may sound uninteresting at the moment; but I think after a couple releases, we could have some other grand ideas such as: saved profiles, gold to upgrade arsenal of spells, talents, etc...but for now...a vanilla fireball thrower mage will suffice for this experiment. OK. So... a MenuObject  may need to be loosely coupled to allow future items such as networking? may be a button? a CharacterObject has a name speed oomph health and a funky robe color. cap on the three stats (1-10) an arsenal of 1 spell (possibly could expand this) The Loading Screen As is. The Battleground Screen For now, I'm keeping the screen as max resolution for the PC. The screen isn't going to move or even be a split screen. I'm not aiming high here because I want to see what level of change is involved when new features / concepts are added to game content. I'm interested to find out if we could apply techniques such as MVC or MVVM to this type of development or is it too tightly coupled? This reminds me when when my best friend and I were brainstorming our game idea (this is going back a while...1994, 6?) and he cringed at the thought of bringing business technology into games, especially when I suggested a database to store character information and COM / DCOM as the medium, but it seems I wasn't far off (reflecting); just like his implementation of a xml "config file" for dynamic direct-x menus back before .net in 1999...anyhow...i digress... The Battle One screen, two characters lobing balls of fire at each other...It doesn't get better than that. Every so often a scroll appears...and the fireballs bounce off walls, or the wizard has rapid fire, or even scrolls of healing! The scroll options are endless. Two bars at the top, each the color of the wizard (with their name beside the bar) indicate how much health they have. Possibly the appearance of the scrolls means the battle is taking too long? I'm thinking 1 player controls: up, down, left, right and space to fire the button. Or even possibly, mouse click and shift - mouse button to fire a spell in the direction they are facing. Two player controls: a, s, d, f and space AND arrows (up, down, left, right) and Del key or Crtl. The game ends when a player has 0 health and a dialog box appears asking for a rematch / reconfigure / exit. Health goes down when a fireball (friendly or not), connects with a wizard. When a wizard connects with a scroll, a countdown clock / icon appears near the health bar and the wizard begins to glow. For the most part, a wizard can have only scroll 1 effect on him at a time. Notes: Ok, there's alot to cover here. a CharacterObject is a GameObject it travels at a set velocity it travels in a direction it has sounds (walking, running, casting, impact, dying, laughing, whistling, other?) it has animations (walking, running, casting, impact, dying, laughing, idle, other?) it has a lifespan (determined by health) it is alive or dead it has a position a ScrollObject is a GameObject it carries a transferance of points "damage" (or healing, bad scroll effect?) (determinde by caster) it carries a transferance of "other" it is stationary it has a sound on impact it has a stationary animation it has an impact animation / or transfers an impact animation it has a fade animation? it has a lifespan (determined by game) it is alive or dead it has a position a WallObject is a GameObject it has a sound on fireball impact? it is a still image / stationary it has an impact animation / or transfers an impact animation it is dead it has a position A FireBall is a GameObject it carries a transferance of poinst "damage" (or healing, bad scroll effect?) (determinde by caster) it travels at a set velocity it travels in a direction it has a sound it has a travel animation it has an impact animation / or transfers an impact animation it has a fade animation? it has a lifespan (determined by caster) it is alive or dead it has a position As I look at this, I can see some common attributes in each object that I can carry up to the GameObject. I think I'm going to end the documentation here, it's taken me a bit of time to type this all out, tomorrow. I'll load up my IDE and my paint studio to get some good old fashioned cowboy hacking going!   D.

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  • Apple Mail authentication failure to Apache James while Thunderbird connects

    - by dacracot
    I have an Apache James 2.3.2 email server running on RHEL 5. I have been connecting to it successfully for months using Thunderbird (currently version 12.0.1). I am attempting to connect to the same account using Apple's Mail 6.5. On the first dialog, to add an account to Apple's Mail, it asks for full name, email address, and password. It then asks for an incoming mail server. I put account type equal to POP, the incoming mail server equal to the host in my email address, and my username and password. It comes back with the error: "Logging in to the POP server "" failed. Make sure the user name and password you entered are correct, then click Continue. If the information isn't correct, you cannot receive messages." While the dialogs are different in Thunderbird, I believe that I am giving it exactly the same parameters, and succeeding with authentication.

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  • Apple Mail authentication failure to Apache James while Thunderbird connects

    - by dacracot
    I have an Apache James 2.3.2 email server running on RHEL 5. I have been connecting to it successfully for months using Thunderbird (currently version 12.0.1). I am attempting to connect to the same account using Apple's Mail 6.5. On the first dialog, to add an account to Apple's Mail, it asks for full name, email address, and password. It then asks for an incoming mail server. I put account type equal to POP, the incoming mail server equal to the host in my email address, and my username and password. It comes back with the error: "Logging in to the POP server "" failed. Make sure the user name and password you entered are correct, then click Continue. If the information isn't correct, you cannot receive messages." While the dialogs are different in Thunderbird, I believe that I am giving it exactly the same parameters, and succeeding with authentication.

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  • Calling Web Service Functions Asynchronously from a Web Page

    - by SGWellens
    Over on the Asp.Net forums where I moderate, a user had a problem calling a Web Service from a web page asynchronously. I tried his code on my machine and was able to reproduce the problem. I was able to solve his problem, but only after taking the long scenic route through some of the more perplexing nuances of Web Services and Proxies. Here is the fascinating story of that journey. Start with a simple Web Service     public class Service1 : System.Web.Services.WebService    {        [WebMethod]        public string HelloWorld()        {            // sleep 10 seconds            System.Threading.Thread.Sleep(10 * 1000);            return "Hello World";        }    } The 10 second delay is added to make calling an asynchronous function more apparent. If you don't call the function asynchronously, it takes about 10 seconds for the page to be rendered back to the client. If the call is made from a Windows Forms application, the application freezes for about 10 seconds. Add the web service to a web site. Right-click the project and select "Add Web Reference…" Next, create a web page to call the Web Service. Note: An asp.net web page that calls an 'Async' method must have the Async property set to true in the page's header: <%@ Page Language="C#"          AutoEventWireup="true"          CodeFile="Default.aspx.cs"          Inherits="_Default"           Async='true'  %> Here is the code to create the Web Service proxy and connect the event handler. Shrewdly, we make the proxy object a member of the Page class so it remains instantiated between the various events. public partial class _Default : System.Web.UI.Page {    localhost.Service1 MyService;  // web service proxy     // ---- Page_Load ---------------------------------     protected void Page_Load(object sender, EventArgs e)    {        MyService = new localhost.Service1();        MyService.HelloWorldCompleted += EventHandler;          } Here is the code to invoke the web service and handle the event:     // ---- Async and EventHandler (delayed render) --------------------------     protected void ButtonHelloWorldAsync_Click(object sender, EventArgs e)    {        // blocks        ODS("Pre HelloWorldAsync...");        MyService.HelloWorldAsync();        ODS("Post HelloWorldAsync");    }    public void EventHandler(object sender, localhost.HelloWorldCompletedEventArgs e)    {        ODS("EventHandler");        ODS("    " + e.Result);    }     // ---- ODS ------------------------------------------------    //    // Helper function: Output Debug String     public static void ODS(string Msg)    {        String Out = String.Format("{0}  {1}", DateTime.Now.ToString("hh:mm:ss.ff"), Msg);        System.Diagnostics.Debug.WriteLine(Out);    } I added a utility function I use a lot: ODS (Output Debug String). Rather than include the library it is part of, I included it in the source file to keep this example simple. Fire up the project, open up a debug output window, press the button and we get this in the debug output window: 11:29:37.94 Pre HelloWorldAsync... 11:29:37.94 Post HelloWorldAsync 11:29:48.94 EventHandler 11:29:48.94 Hello World   Sweet. The asynchronous call was made and returned immediately. About 10 seconds later, the event handler fires and we get the result. Perfect….right? Not so fast cowboy. Watch the browser during the call: What the heck? The page is waiting for 10 seconds. Even though the asynchronous call returned immediately, Asp.Net is waiting for the event to fire before it renders the page. This is NOT what we wanted. I experimented with several techniques to work around this issue. Some may erroneously describe my behavior as 'hacking' but, since no ingesting of Twinkies was involved, I do not believe hacking is the appropriate term. If you examine the proxy that was automatically created, you will find a synchronous call to HelloWorld along with an additional set of methods to make asynchronous calls. I tried the other asynchronous method supplied in the proxy:     // ---- Begin and CallBack ----------------------------------     protected void ButtonBeginHelloWorld_Click(object sender, EventArgs e)    {        ODS("Pre BeginHelloWorld...");        MyService.BeginHelloWorld(AsyncCallback, null);        ODS("Post BeginHelloWorld");    }    public void AsyncCallback(IAsyncResult ar)    {        String Result = MyService.EndHelloWorld(ar);         ODS("AsyncCallback");        ODS("    " + Result);    } The BeginHelloWorld function in the proxy requires a callback function as a parameter. I tested it and the debug output window looked like this: 04:40:58.57 Pre BeginHelloWorld... 04:40:58.57 Post BeginHelloWorld 04:41:08.58 AsyncCallback 04:41:08.58 Hello World It works the same as before except for one critical difference: The page rendered immediately after the function call. I was worried the page object would be disposed after rendering the page but the system was smart enough to keep the page object in memory to handle the callback. Both techniques have a use: Delayed Render: Say you want to verify a credit card, look up shipping costs and confirm if an item is in stock. You could have three web service calls running in parallel and not render the page until all were finished. Nice. You can send information back to the client as part of the rendered page when all the services are finished. Immediate Render: Say you just want to start a service running and return to the client. You can do that too. However, the page gets sent to the client before the service has finished running so you will not be able to update parts of the page when the service finishes running. Summary: YourFunctionAsync() and an EventHandler will not render the page until the handler fires. BeginYourFunction() and a CallBack function will render the page as soon as possible. I found all this to be quite interesting and did a lot of searching and researching for documentation on this subject….but there isn't a lot out there. The biggest clues are the parameters that can be sent to the WSDL.exe program: http://msdn.microsoft.com/en-us/library/7h3ystb6(VS.100).aspx Two parameters are oldAsync and newAsync. OldAsync will create the Begin/End functions; newAsync will create the Async/Event functions. Caveat: I haven't tried this but it was stated in this article. I'll leave confirming this as an exercise for the student J. Included Code: I'm including the complete test project I created to verify the findings. The project was created with VS 2008 SP1. There is a solution file with 3 projects, the 3 projects are: Web Service Asp.Net Application Windows Forms Application To decide which program runs, you right-click a project and select "Set as Startup Project". I created and played with the Windows Forms application to see if it would reveal any secrets. I found that in the Windows Forms application, the generated proxy did NOT include the Begin/Callback functions. Those functions are only generated for Asp.Net pages. Probably for the reasons discussed earlier. Maybe those Microsoft boys and girls know what they are doing. I hope someone finds this useful. Steve Wellens

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  • AutoVue Integrates with Primavera P6

    - by celine.beck
    Oracle's Primavera P6 Enterprise Project Portfolio Management is an integrated project portfolio management (PPM) application that helps select the right strategic mix of projects, balance resource capacity, manage project risk and complete projects on time and within budget. AutoVue 19.3 and later versions (release 20.0) now integrate out of the box with the Web version of Oracle Primavera P6 release 7. The integration between the two products, which was announced during Oracle Open World 2009, provides project teams with ready access to any project documents directly from within the context of P6 in support for project scope definition and project planning and execution. You can learn more about the integration between AutoVue and Primavera P6 by: Listening to the Oracle Appcast entitled Enhance Primavera Project Document Collaboration with AutoVue Enterprise Visualization Watching an Oracle Webcast about how to improve project success with document visualization and collaboration Watching a recorded demo of the integrated solution Teams involved in complex projects like construction or plant shutdown activities are highly interdependent: the decisions of one affecting the actions of many others. This coupled with increasing project complexity, a vast array of players and heavy engineering and document-intensive workflows makes it more challenging to complete jobs on time and within budget. Organizations need complete visibility into project information, as well as robust project planning, risk analysis and resource balancing capabilities similar to those featured in Primavera P6 ; they also need to make sure that all project stakeholders, even those who neither understand engineering drawings nor are interested in engineering details that go beyond their specific needs, have ready access to technically advanced project information. This is exactly what the integration between AutoVue and Primavera delivers: ready access to any project information attached to Primavera projects, tasks or activities via AutoVue. There is no need for users to waste time searching for project-related documents or disrupting engineers for printouts, users have all the context they need to make sound decisions right from within Primavera P6 with a single click of a button. We are very excited about this new integration. If you are using Primavera and / or Primavera tied with AutoVue, we would be interested in getting your feedback on this integration! Please do not hesitate to post your comments / reactions on the blog!

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  • Download and Share Visual Studio Color Schemes

    - by ScottGu
    As developers we often spend a large part of our day staring at code within Visual Studio.  If you are like me, after awhile the default VS text color scheme starts to get a little boring. The good news is that Visual Studio allows you to completely customize the editor background and text colors to whatever you want – allowing you to tweak them to create the experience that is “just right” for your eyes and personality.  You can then optionally export/import your color scheme preferences to an XML file via the Tools->Import and Export Settings menu command. [In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu] New website that makes it easy to download and share VS color schemes Luke Sampson launched the http://studiostyles.info/ site a week ago (built using ASP.NET MVC 2, ASP.NET 4 and VS 2010). Studiostyles.info enables you to easily browse and download Visual Studio color schemes that others have already created.  The color schemes work for both VS 2008 and VS 2010 (all versions – including the free VS express editions): Color schemes are sorted by popularity and voting (you can vote on whether you find each “hot or not”).  You can click any of the schemes to see screen-shots of it in use for common coding scenarios.  You can then download the color settings for either VS 2010 or VS 2008: You can also optionally upload color schemes of your own if you have a good one you want to share with others.  If you haven’t visited it yet – check it out: http://studiostyles.info/  And thank you Luke Sampson for building it! Hope this helps, Scott

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  • Latest Chrome Canary Channel Build Adds Automatic ‘Malware Download’ Blocking Feature

    - by Akemi Iwaya
    As Chrome’s popularity continues to grow, malware authors are looking for new ways to target and trick users of Google’s browser into downloading malicious software to their computers. With this problem in mind, Google has introduced a new feature into the Canary Channel to automatically detect and block malware downloads whenever possible in order to help keep your system intact and safe. Screenshot courtesy of The Google Chrome Blog. In addition to the recent Reset Feature added to the stable build of Chrome this past August, the new feature in the Canary Channel build works to help protect you as follows: From the Google Chrome Blog post: In the current Canary build of Chrome, we’ll automatically block downloads of malware that we detect. If you see this message in the download tray at the bottom of your screen, you can click “Dismiss” knowing Chrome is working to keep you safe. (See screenshot above.) You can learn more about the new feature and download the latest Canary Channel build via the links below. Don’t mess with my browser! [Google Chrome Blog] Download the Latest Chrome Canary Build [Google] [via The Next Web]     

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  • IOCTL call error when trying to format an SD card

    - by masfenix
    Found an SD card (1GB) lying around. Thought I might pop that into my card reader and see if anything is on it. Nothing. There isn't even a file system on it. I right-click and go "format" but nothing happens. So I try in command. > format f: Insert new disk for drive F: and press ENTER when ready... Error in IOCTL call. What does this mean?

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  • How to Bridge Two Ethernet Ports on Mac OS X

    - by Rabarberski
    How can I bridge two wired ethernet interfaces on Mac OS X (e.g. the current MacPro comes with two ethernet ports)? Googling turned up (e.g. this Apple forum post and this openvpn post) that this is fairly easy on Linux (using the brctl command) and under Windows (via Network Connections right-click Bridge Connections), but how is it done under Mac OS X? BTW: There also doesn't seem to be a macport for brctl ('port search brctl' didn't turn up any results) Note: I don't want to have 'internet sharing', which creates a new network (by handing out network addresses in a new range). I want to really 'bridge' two interfaces so to keep the same network subnet.

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  • Desktop Fun: Add New Theme Packs to Windows 7

    - by Asian Angel
    One of the wonderful things about Windows 7 is the availability of new themes and with more becoming available each month there are plenty to choose from. Join us as we take a look at sampler set of the great themes that you can download for your system. For the themes shown here we have included a full-screen image and a screenshot showing the wallpapers that are available with each theme. Once you have downloaded the themes simply double click on the theme-pack file to install them. Note: The system “text size and sound schemes” will vary slightly from theme to theme. Cats Anytime Dogs in Summer Tigers Ceske jaro (Czech Spring) Brazil Lugares Coloridos Latvian Nature Srpska priroda (Serbian Nature) Bicycle Ride around Taiwan Bing’s Best Avatar Zune Characters Conclusion If you are looking for an easy way to add some beautiful variety to your Windows 7 installation then head on over to the Microsoft website…you just might find that perfect theme waiting for your computer. Links Windows 7 Themes at Microsoft Ceske jaro (Czech Spring) at Softpedia Similar Articles Productive Geek Tips Windows 7 Welcome Screen Taking Forever? Here’s the Fix (Maybe)Unofficial Windows XP Themes Created by MicrosoftSweet Black Theme for FirefoxDownload New Themes in Windows 7Sweet Black Theme for Windows XP TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Chitika iPad Labs Gives Live iPad Sale Stats Heaven & Hell Finder Icon Using TrueCrypt to Secure Your Data Quickly Schedule Meetings With NeedtoMeet Share Flickr Photos On Facebook Automatically Are You Blocked On Gtalk? Find out

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  • Revisiting ANTS Performance Profiler 7.4

    - by James Michael Hare
    Last year, I did a small review on the ANTS Performance Profiler 6.3, now that it’s a year later and a major version number higher, I thought I’d revisit the review and revise my last post. This post will take the same examples as the original post and update them to show what’s new in version 7.4 of the profiler. Background A performance profiler’s main job is to keep track of how much time is typically spent in each unit of code. This helps when we have a program that is not running at the performance we expect, and we want to know where the program is experiencing issues. There are many profilers out there of varying capabilities. Red Gate’s typically seem to be the very easy to “jump in” and get started with very little training required. So let’s dig into the Performance Profiler. I’ve constructed a very crude program with some obvious inefficiencies. It’s a simple program that generates random order numbers (or really could be any unique identifier), adds it to a list, sorts the list, then finds the max and min number in the list. Ignore the fact it’s very contrived and obviously inefficient, we just want to use it as an example to show off the tool: 1: // our test program 2: public static class Program 3: { 4: // the number of iterations to perform 5: private static int _iterations = 1000000; 6: 7: // The main method that controls it all 8: public static void Main() 9: { 10: var list = new List<string>(); 11: 12: for (int i = 0; i < _iterations; i++) 13: { 14: var x = GetNextId(); 15: 16: AddToList(list, x); 17: 18: var highLow = GetHighLow(list); 19: 20: if ((i % 1000) == 0) 21: { 22: Console.WriteLine("{0} - High: {1}, Low: {2}", i, highLow.Item1, highLow.Item2); 23: Console.Out.Flush(); 24: } 25: } 26: } 27: 28: // gets the next order id to process (random for us) 29: public static string GetNextId() 30: { 31: var random = new Random(); 32: var num = random.Next(1000000, 9999999); 33: return num.ToString(); 34: } 35: 36: // add it to our list - very inefficiently! 37: public static void AddToList(List<string> list, string item) 38: { 39: list.Add(item); 40: list.Sort(); 41: } 42: 43: // get high and low of order id range - very inefficiently! 44: public static Tuple<int,int> GetHighLow(List<string> list) 45: { 46: return Tuple.Create(list.Max(s => Convert.ToInt32(s)), list.Min(s => Convert.ToInt32(s))); 47: } 48: } So let’s run it through the profiler and see what happens! Visual Studio Integration First, let’s look at how the ANTS profilers integrate with Visual Studio’s menu system. Once you install the ANTS profilers, you will get an ANTS menu item with several options: Notice that you can either Profile Performance or Launch ANTS Performance Profiler. These sound similar but achieve two slightly different actions: Profile Performance: this immediately launches the profiler with all defaults selected to profile the active project in Visual Studio. Launch ANTS Performance Profiler: this launches the profiler much the same way as starting it from the Start Menu. The profiler will pre-populate the application and path information, but allow you to change the settings before beginning the profile run. So really, the main difference is that Profile Performance immediately begins profiling with the default selections, where Launch ANTS Performance Profiler allows you to change the defaults and attach to an already-running application. Let’s Fire it Up! So when you fire up ANTS either via Start Menu or Launch ANTS Performance Profiler menu in Visual Studio, you are presented with a very simple dialog to get you started: Notice you can choose from many different options for application type. You can profile executables, services, web applications, or just attach to a running process. In fact, in version 7.4 we see two new options added: ASP.NET Web Application (IIS Express) SharePoint web application (IIS) So this gives us an additional way to profile ASP.NET applications and the ability to profile SharePoint applications as well. You can also choose your level of detail in the Profiling Mode drop down. If you choose Line-Level and method-level timings detail, you will get a lot more detail on the method durations, but this will also slow down profiling somewhat. If you really need the profiler to be as unintrusive as possible, you can change it to Sample method-level timings. This is performing very light profiling, where basically the profiler collects timings of a method by examining the call-stack at given intervals. Which method you choose depends a lot on how much detail you need to find the issue and how sensitive your program issues are to timing. So for our example, let’s just go with the line and method timing detail. So, we check that all the options are correct (if you launch from VS2010, the executable and path are filled in already), and fire it up by clicking the [Start Profiling] button. Profiling the Application Once you start profiling the application, you will see a real-time graph of CPU usage that will indicate how much your application is using the CPU(s) on your system. During this time, you can select segments of the graph and bookmark them, giving them mnemonic names. This can be useful if you want to compare performance in one part of the run to another part of the run. Notice that once you select a block, it will give you the call tree breakdown for that selection only, and the relative performance of those calls. Once you feel you have collected enough information, you can click [Stop Profiling] to stop the application run and information collection and begin a more thorough analysis. Analyzing Method Timings So now that we’ve halted the run, we can look around the GUI and see what we can see. By default, the times are shown in terms of percentage of time of the total run of the application, though you can change it in the View menu item to milliseconds, ticks, or seconds as well. This won’t affect the percentages of methods, it only affects what units the times are shown. Notice also that the major hotspot seems to be in a method without source, ANTS Profiler will filter these out by default, but you can right-click on the line and remove the filter to see more detail. This proves especially handy when a bottleneck is due to a method in the BCL. So now that we’ve removed the filter, we see a bit more detail: In addition, ANTS Performance Profiler gives you the ability to decompile the methods without source so that you can dive even deeper, though typically this isn’t necessary for our purposes. When looking at timings, there are generally two types of timings for each method call: Time: This is the time spent ONLY in this method, not including calls this method makes to other methods. Time With Children: This is the total of time spent in both this method AND including calls this method makes to other methods. In other words, the Time tells you how much work is being done exclusively in this method, and the Time With Children tells you how much work is being done inclusively in this method and everything it calls. You can also choose to display the methods in a tree or in a grid. The tree view is the default and it shows the method calls arranged in terms of the tree representing all method calls and the parent method that called them, etc. This is useful for when you find a hot-spot method, you can see who is calling it to determine if the problem is the method itself, or if it is being called too many times. The grid method represents each method only once with its totals and is useful for quickly seeing what method is the trouble spot. In addition, you can choose to display Methods with source which are generally the methods you wrote (as opposed to native or BCL code), or Any Method which shows not only your methods, but also native calls, JIT overhead, synchronization waits, etc. So these are just two ways of viewing the same data, and you’re free to choose the organization that best suits what information you are after. Analyzing Method Source If we look at the timings above, we see that our AddToList() method (and in particular, it’s call to the List<T>.Sort() method in the BCL) is the hot-spot in this analysis. If ANTS sees a method that is consuming the most time, it will flag it as a hot-spot to help call out potential areas of concern. This doesn’t mean the other statistics aren’t meaningful, but that the hot-spot is most likely going to be your biggest bang-for-the-buck to concentrate on. So let’s select the AddToList() method, and see what it shows in the source window below: Notice the source breakout in the bottom pane when you select a method (from either tree or grid view). This shows you the timings in this method per line of code. This gives you a major indicator of where the trouble-spot in this method is. So in this case, we see that performing a Sort() on the List<T> after every Add() is killing our performance! Of course, this was a very contrived, duh moment, but you’d be surprised how many performance issues become duh moments. Note that this one line is taking up 86% of the execution time of this application! If we eliminate this bottleneck, we should see drastic improvement in the performance. So to fix this, if we still wanted to maintain the List<T> we’d have many options, including: delay Sort() until after all Add() methods, using a SortedSet, SortedList, or SortedDictionary depending on which is most appropriate, or forgoing the sorting all together and using a Dictionary. Rinse, Repeat! So let’s just change all instances of List<string> to SortedSet<string> and run this again through the profiler: Now we see the AddToList() method is no longer our hot-spot, but now the Max() and Min() calls are! This is good because we’ve eliminated one hot-spot and now we can try to correct this one as well. As before, we can then optimize this part of the code (possibly by taking advantage of the fact the list is now sorted and returning the first and last elements). We can then rinse and repeat this process until we have eliminated as many bottlenecks as possible. Calls by Web Request Another feature that was added recently is the ability to view .NET methods grouped by the HTTP requests that caused them to run. This can be helpful in determining which pages, web services, etc. are causing hot spots in your web applications. Summary If you like the other ANTS tools, you’ll like the ANTS Performance Profiler as well. It is extremely easy to use with very little product knowledge required to get up and running. There are profilers built into the higher product lines of Visual Studio, of course, which are also powerful and easy to use. But for quickly jumping in and finding hot spots rapidly, Red Gate’s Performance Profiler 7.4 is an excellent choice. Technorati Tags: Influencers,ANTS,Performance Profiler,Profiler

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  • How To Jailbreak iPad On Windows & Mac OS X

    - by Gopinath
    As the iPad are selling like hot cakes at Apple Stores(where are the critics who said iPad sucks!), many of the iPad owners are looking for the ways to jailbreak it. Thanks to Spirit application that makes jailbreaking of an iPad as simple as a kids play. In this post we will guide you the steps required for giving freedom to your iPad on your Windows PC or Mac. 1. Backup Your iPad SHSH – Backup SHSH of your iPad. This is required for restoring your iPad if something goes wrong while jailbreaking. Here is a nice article on how to perform the backup on Windows as well as on Mac OSX. 2. Install iTunes – Most likely that you have the latest version of iTunes. If not, install it from here 3. Activate Your iPad – If you iPad is already then you are all set to start the jail breaking. If not activate your iPad. 4.  Download Jailbreaking tool Spirit – The Spirit tool that can jailbreak the latest version of iPads and iPhones is available for Mac OSX and Windows XP/Vista/7. You can download it from Spirit website 5. Connect your iPad to your computer 6. Launch Spirit Jailbreak and click on Jailbreak button. Wait till you see “Jailbreak Complete!” message on your screen. 7. Voila! Your iPad is jailbroken and Cydia should be there in the list of applications. Join us on Facebook to read all our stories right inside your Facebook news feed.

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  • Wireless networking on Gnome on Ubuntu 9 / 10

    - by WaveyDavey
    So here's my problem: I have some netbooks (ASUS eee, and ACER Aspire Ones) that I've been tasked to set up as kiosk machines, locked up tight for normal users. I am a command-line, server man, so this gnome malarkey is all a bit new to me. I found a lovely 9.04 kiosk livecd that installs and runs exactly as I want it to, but I can't get the wireless working. So I dropped on a full 10.4 distro, and wireless works straight out of the box (so hardware is good) - all I needed to do was right-click on the network connection icon, enter my SSID and password (WPA/WPA2) and away it went, perfect. Further investigation on 10.4 distro shows that /etc/networking/interfaces is virtually empty (just auto lo iface lo inet loopback in it), even after I have set up the wireless thru the gnome taskbar applet (is that the right word?). So where does gnome / ubuntu store the network settings to bring the blasted wireless connection up, and what do I need to do on the kiosk version to get wireless running?

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  • Save GMail attachments directly to Google Drive

    - by Gopinath
    What makes Google Drive attractive is it ability to play nice with other Google offerings like Google Docs, GMail, Android mobiles & tablets. Google Drive is well integrated with Google Docs and every document you create is automatically saved on Google Drive. Google Drive’s integration with other services like GMail may be in progress at Google, but enthusiastic community developers has released a plugin to integrate with GMail. The Google Chrome plugin “Gmail Attachments To Drive” lets you automatically save GMail attachments to Google Drive with a single click. Once the plugin is installed it adds a link “Save To Drive” next to each attachment displayed on GMail and on clicking, it automatically saves the files to Google Drive. I tested the plugin by saving attachments like PDFs, MS Word documents and Images to Google Drive and it worked very well.  I don’t have any complaints on the plugin except couple of feature requests. If the plugin can provide option “Save All Files To Drive” it will be very much helpful to save all attachment of an email at one shot. Also it would be great if the developer can extend it to Firefox too. Anyways it’s a great plugin for Google Drive users and worth checking it out. Install Gmail Attachments To Drive for Google Chrome

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  • Windows Phone 7 ActiveSync error 86000C09 (My First Post!)

    - by Chris Heacock
    Hello fellow geeks! I'm kicking off this new blog with an issue that was a real nuisance, but was relatively easy to fix. During a recent Exchange 2003 to 2010 migration, one of the users was getting an error on his Windows Phone 7 device. The error code that popped up on the phone on every sync attempt was 86000C09 We tested the following: Different user on the same device: WORKED Problem user on a different device: FAILED   Seemed to point (conclusively) at the user's account as the crux of the issue. This error can come up if a user has too many devices syncing, but he had no other phones. We verified that using the following command: Get-ActiveSyncDeviceStatistics -Identity USERID Turns out, it was the old familiar inheritable permissions issue in Active Directory. :-/ This user was not an admin, nor had he ever been one. HOWEVER, his account was cloned from an ex-admin user, so the unchecked box stayed unchecked. We checked the box and voila, data started flowing to his device(s). Here's a refresher on enabling Inheritable permissions: Open ADUC, and enable Advanced Features: Then open properties and go to the Security tab for the user in question: Click on Advanced, and the following screen should pop up: Verify that "Include inheritable permissions from this object's parent" is *checked*.   You will notice that for certain users, this box keeps getting unchecked. This is normal behavior due to the inbuilt security of Active Directory. People that are in the following groups will have this flag altered by AD: Account Operators Administrators Backup Operators Domain Admins Domain Controllers Enterprise Admins Print Operators Read-Only Domain Controllers Replicator Schema Admins Server Operators Once the box is cheked, permissions will flow and the user will be set correctly. Even if the box is unchecked, they will function normally as they now has the proper permissions configured. You need to perform this same excercise when enabling users for Lync, but that's another blog. :-)   -Chris

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  • MS SideWinder Force Feedback Wheel under Win7 x64 - steering works but force feedback not

    - by user24752
    I just bought this second-hand ancient but professional steering wheel: Microsoft SideWinder Force Feedback Wheel. I hooked it up to my Win7 x64 machine, it recognized it without installing anything, it did show up in the "Devices and Printers" section. Right-click - I could calibrate it, I could use it under Flatout2 right away. However, force feedback does not seem to work. The steering wheel has a force-button. If I set it using force feedback, it should lit up according to the manual (originally written for Win98). However, instead of lighting up, it blinks. The manual does not associate anything to blinking. I never used any game controllers before on any Windows. Is there a way to check/calibrate force feedback?

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  • Can't upgrade Windows Server 2012 Essentials to Windows Server 2012 R2 Essentials

    - by Magnus
    So today was RTM of Windows Server 2012 R2 Essentials released. I immediately tried to do an in-place upgrade of an existing RTM 2012 Essentials to RTM 2012 R2 Essentials, but get: Windows Server 2012 Essentials cannot be upgraded to Windows Server 2012 R2 Essentials. You can choose to install a new copy of Windows Server 2012 R2 Essentials instead, but this is different from an upgrade, and does not keep your files, settings, and programs. You’ll need to reinstall any programs using the original installation discs or files. To save your files before installing Windows, back them up to an external location such as a CD, DVD, or external hard drive. To install a new copy of Windows Server 2012 R2 Essentials, click the Back button in the upper left-hand corner, and select “Custom (advanced)”. This seems a bit odd, is this really the case? I can't find anything in the official documentation stating that this upgrade isn't possible.

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  • Shared Excel WorkBook is locked by another user

    - by Simone
    I’ve been trying everything; this is the last chance I have. I moved folders and files from an old Windows Server 2003 File Server to a new FS (Win Server 2008 R2) with DFS and ABE enabled. Now, a specific Shared Excel file is driving me crazy, out of a sudden, lots of times per day, users are getting the following error while opening that file: Filename.xlsx is locked for editing by ‘another user’. Open ‘Read-Only’ or, click ‘Notify’ to open.. I’ve already followed this, with no joy: http://blogs.technet.com/b/the_microsoft_excel_support_team_blog/archive/2012/05/14/the-definitive-locked-file-post.aspx In any case, I strongly think this is not client-related, since it never gave that problem in the past with Windows Server 2003. I’ve found and followed many other solutions, nothing. The users are all utilizing Office 2010 on Windows 7 machines, besides a few users who are still on Windows XP machines. I appreciate any help, thank you!

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  • Shared Excel WorkBook is locked by another user

    - by Simone
    I’ve been trying everything; this is the last chance I have. I moved folders and files from an old Windows Server 2003 File Server to a new FS (Win Server 2008 R2) with DFS and ABE enabled. Now, a specific Shared Excel file is driving me crazy, out of a sudden, lots of times per day, users are getting the following error while opening that file: Filename.xlsx is locked for editing by ‘another user’. Open ‘Read-Only’ or, click ‘Notify’ to open.. I’ve already followed this, with no joy: http://blogs.technet.com/b/the_microsoft_excel_support_team_blog/archive/2012/05/14/the-definitive-locked-file-post.aspx In any case, I strongly think this is not client-related, since it never gave that problem in the past with Windows Server 2003. I’ve found and followed many other solutions, nothing. The users are all utilizing Office 2010 on Windows 7 machines, besides a few users who are still on Windows XP machines. I appreciate any help, thank you!

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  • Amazon S3 Tips: Quickly Add/Modify HTTP Headers To All Files Recursively

    - by Gopinath
    Amazon S3 is an dead cheap cloud storage service that offers unlimited storage in pay as you use model. Recently we moved all the images and other static files(scripts & css) of Tech Dreams to Amazon S3 to reduce load on VPS server. Amazon S3 is cheap, but monthly bill will shoot up if images/static files of the blog are not cached properly (more details). By adding caching HTTP Headers Cache-Control or Expires to all the files hosted on Amazon S3 we reduced the monthly bills and also load time of blog pages. Lets see how to add custom headers to files stored on Amazon S3 service. Updating HTTP Headers of one file at a time The web interface of Amazon S3 Management console allows adding custom HTTP headers to one file at a time  through “Properties”  window (to access properties, right on a file and select Properties menu). So if you have to add headers to 100s of files then this is not the way to go! Updating HTTP Headers of multiple files of a folder recursively To update HTTP headers of multiple files in a folder recursively, we can use CloudBerry Explorer freeware or Bucket Explorer trail ware applications. CloudBerry is my favourite as it’s a freeware and also it’s has excellent interface to access Amazon S3 from desktops. Adding HTTP Headers with CloudBerry application is straight forward – right click on the required folders and choose the option “Set HTTP Headers”. Download CloudBerry Explorer This article titled,Amazon S3 Tips: Quickly Add/Modify HTTP Headers To All Files Recursively, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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  • Your thoughts on Best Practices for Scientific Computing?

    - by John Smith
    A recent paper by Wilson et al (2014) pointed out 24 Best Practices for scientific programming. It's worth to have a look. I would like to hear opinions about these points from experienced programmers in scientific data analysis. Do you think these advices are helpful and practical? Or are they good only in an ideal world? Wilson G, Aruliah DA, Brown CT, Chue Hong NP, Davis M, Guy RT, Haddock SHD, Huff KD, Mitchell IM, Plumbley MD, Waugh B, White EP, Wilson P (2014) Best Practices for Scientific Computing. PLoS Biol 12:e1001745. http://www.plosbiology.org/article/info%3Adoi%2F10.1371%2Fjournal.pbio.1001745 Box 1. Summary of Best Practices Write programs for people, not computers. (a) A program should not require its readers to hold more than a handful of facts in memory at once. (b) Make names consistent, distinctive, and meaningful. (c) Make code style and formatting consistent. Let the computer do the work. (a) Make the computer repeat tasks. (b) Save recent commands in a file for re-use. (c) Use a build tool to automate workflows. Make incremental changes. (a) Work in small steps with frequent feedback and course correction. (b) Use a version control system. (c) Put everything that has been created manually in version control. Don’t repeat yourself (or others). (a) Every piece of data must have a single authoritative representation in the system. (b) Modularize code rather than copying and pasting. (c) Re-use code instead of rewriting it. Plan for mistakes. (a) Add assertions to programs to check their operation. (b) Use an off-the-shelf unit testing library. (c) Turn bugs into test cases. (d) Use a symbolic debugger. Optimize software only after it works correctly. (a) Use a profiler to identify bottlenecks. (b) Write code in the highest-level language possible. Document design and purpose, not mechanics. (a) Document interfaces and reasons, not implementations. (b) Refactor code in preference to explaining how it works. (c) Embed the documentation for a piece of software in that software. Collaborate. (a) Use pre-merge code reviews. (b) Use pair programming when bringing someone new up to speed and when tackling particularly tricky problems. (c) Use an issue tracking tool. I'm relatively new to serious programming for scientific data analysis. When I tried to write code for pilot analyses of some of my data last year, I encountered tremendous amount of bugs both in my code and data. Bugs and errors had been around me all the time, but this time it was somewhat overwhelming. I managed to crunch the numbers at last, but I thought I couldn't put up with this mess any longer. Some actions must be taken. Without a sophisticated guide like the article above, I started to adopt "defensive style" of programming since then. A book titled "The Art of Readable Code" helped me a lot. I deployed meticulous input validations or assertions for every function, renamed a lot of variables and functions for better readability, and extracted many subroutines as reusable functions. Recently, I introduced Git and SourceTree for version control. At the moment, because my co-workers are much more reluctant about these issues, the collaboration practices (8a,b,c) have not been introduced. Actually, as the authors admitted, because all of these practices take some amount of time and effort to introduce, it may be generally hard to persuade your reluctant collaborators to comply them. I think I'm asking your opinions because I still suffer from many bugs despite all my effort on many of these practices. Bug fix may be, or should be, faster than before, but I couldn't really measure the improvement. Moreover, much of my time has been invested on defence, meaning that I haven't actually done much data analysis (offence) these days. Where is the point I should stop at in terms of productivity? I've already deployed: 1a,b,c, 2a, 3a,b,c, 4b,c, 5a,d, 6a,b, 7a,7b I'm about to have a go at: 5b,c Not yet: 2b,c, 4a, 7c, 8a,b,c (I could not really see the advantage of using GNU make (2c) for my purpose. Could anyone tell me how it helps my work with MATLAB?)

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  • Token based Authentication for WCF HTTP/REST Services: Authorization

    - by Your DisplayName here!
    In the previous post I showed how token based authentication can be implemented for WCF HTTP based services. Authentication is the process of finding out who the user is – this includes anonymous users. Then it is up to the service to decide under which circumstances the client has access to the service as a whole or individual operations. This is called authorization. By default – my framework does not allow anonymous users and will deny access right in the service authorization manager. You can however turn anonymous access on – that means technically, that instead of denying access, an anonymous principal is placed on Thread.CurrentPrincipal. You can flip that switch in the configuration class that you can pass into the service host/factory. var configuration = new WebTokenWebServiceHostConfiguration {     AllowAnonymousAccess = true }; But this is not enough, in addition you also need to decorate the individual operations to allow anonymous access as well, e.g.: [AllowAnonymousAccess] public string GetInfo() {     ... } Inside these operations you might have an authenticated or an anonymous principal on Thread.CurrentPrincipal, and it is up to your code to decide what to do. Side note: Being a security guy, I like this opt-in approach to anonymous access much better that all those opt-out approaches out there (like the Authorize attribute – or this.). Claims-based Authorization Since there is a ClaimsPrincipal available, you can use the standard WIF claims authorization manager infrastructure – either declaratively via ClaimsPrincipalPermission or programmatically (see also here). [ClaimsPrincipalPermission(SecurityAction.Demand,     Resource = "Claims",     Operation = "View")] public ViewClaims GetClientIdentity() {     return new ServiceLogic().GetClaims(); }   In addition you can also turn off per-request authorization (see here for background) via the config and just use the “domain specific” instrumentation. While the code is not 100% done – you can download the current solution here. HTH (Wanna learn more about federation, WIF, claims, tokens etc.? Click here.)

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  • Install Additional Printer Drivers (x86) on Vista (x64) - Can't find suitable (x86) ntprint.inf

    - by jmohr
    I have a printer connected to my computer that I'd like to share on my home network - shouldn't be a problem. The computer the printer is connected to is running Vista Ultimate x64. The computers I'm trying to share with are x86 Windows XP Professional and x86 Vista, so I need to install additional (x86) drivers. I checked the box to add x86 printer drivers and then it asked for the location of the drivers. I browsed to the location and clicked OK. It then prompted "Please provide path to Windows media (x86 processor). When I click "Browse..." it wants the location of a file named ntprint.inf It looks like it's asking for a Windows (x86) installation disk. I put one in but I can't seem to find this file on the 32-bit Vista install disk Where is the proper place to find this file?

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