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• How to remove settings from a Microsoft Account Windows 8?

  - by Stevie G

  When installing windows 8 for the first time, I did not create a microsoft account and just installed as the local user. However I recently updated to Windows 8.1 and it forces you to use a microsoft account. I did not want to create an account so one of my friends used his and I logged in. After logging in all the friend's details like apps, wallpaper, lock screen, search mechanism, when I use search i see the friends facebook friends popping up. it is really annoying. How can I remove all of this excess, as I have logged out of the microsoft account and am just using local user but these problems have persisted. Thanks

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• How do I compile for windows XP under windows 7 / visual studio 2008

  - by Jon Cage

  I'm running Windows 7 and Visual Studio 2008 Pro and trying to get my application to work on Windows XP SP3. It's a really minimal command line program so should have any ridiculous dependencies: // XPBuild.cpp : Defines the entry point for the console application. // #include "stdafx.h" int _tmain(int argc, _TCHAR* argv[]) { printf("Hello world"); getchar(); return 0; } I read somewhere that defining several constants such as WINVER should allow me to compile for other platforms. I've tried the added the following to my /D compiler options: ;WINVER=0x0501;_WIN32_WINNT 0x0501;NTDDI_VERSION=NTDDI_WINXP But that made no difference. When I run it on my Windows XP machine (actually running in a virtualbox) I get the following error: This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem. So what have I missed? Is there something else required to run MSVC compiled programs or a different compiler option or something else?

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• Windows 7 doesn't connect to mapped drives at start up.....

  - by danbo

  We are testing Windows 7 (32bit version) and logon to a windows 2003 domain that runs a logon script whichs maps our drive letters. We have no control over the domain. Of our 7 test users, 5 continually recieve red X's on their network drives after they logon. Double clicking on them connects the drives, however, any aplpication that requires files on the fileserver will fail since it thinks it has no connection to the drive. We have tried several reg edits (Enable Linked connections, KeepConn), we have tried to find information in the event viewer to no avail. We have also looked at any differences in NIC driver versions (none). The other 2 computers that can connect without problem are local admins, but, if we logon to the 5 that have the problem with the local admin credentials we get the red x's as well??? This one is a real head scratcher......

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• Windows 7, file properties, date modified, how do you show seconds?

  - by Jordan W.

  Anyone know a way to immediately show the seconds of a file's date modified property in the GUI? So if you create a file, any file in any directory, right-click and choose Properties, the date modified (if it's recent) will say something like "dd/mm/yyy hh:mm, one minute ago" - reminder this is in Windows 7. Windows XP did it normally. Then they changed something. If you wait a while, eventually you'll see the seconds, I'm not sure how long a while is, but this is incredibly annoying if you want to troubleshoot something that relies on the seconds of timestamps... is there a setting? registry key I can change perhaps? I'm literally using Chrome, pasting in the path of the directory to be able to see the seconds quickly (as a workaround) but would be nice to be able to use Win7.

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• Change The Windows 7 Start Orb the Easy Way

  - by Matthew Guay

  Want to make your Windows 7 PC even more unique and personalized?  Then check out this easy guide on how to change your start orb in Windows 7. Getting Started First, download the free Windows 7 Start Button Changer (link below), and extract the contents of the folder.  It contains the app along with a selection of alternate start button orbs you can try out.   Before changing the start button, we advise creating a system restore point in case anything goes wrong.  Enter System Restore in your Start menu search, and select “Create a restore point”. Please note:  We tested this on both the 32 bit and 64 bit editions of Windows 7, and didn’t encounter any problems or stability issues.  That said, it is always prudent to make a restore point just in case a problem did happen. Click the Create button… Then enter a name for the restore point, and click Create. Changing the Start Orb. Once this is finished, run the Windows 7 Start Button Changer as administrator by right-clicking on it and selecting “Run as administrator”.  Accept the UAC prompt that will appear. If you don’t run it as an administrator, you may see the following warning.  Click Quit, and then run again as administrator. You should now see the Windows 7 Start Button Changer.  On the left it shows what your current (default) start orb looks like inactive, when hovered over, and when selected.  Click the orb on the right to select a new start button. Here we browsed to the sample orbs folder, and selected one of them.  Let’s give Windows the Media Center orb for a start orb.  Click the orb you want, and then select open. When you click Open, your screen will momentarily freeze and your taskbar will disappear.  When it reappears, your computer will have gone from having the old, default Start orb style… …to your new, exciting Start orb!  Here it is default, and glowing when hovered over. Now, the Windows 7 Start Orb Changer will change, and show your new Start orb on the left side.  If you would like to revert to the default orb, simply click the folder icon to restore it.  Or, if you would like to change the orb again, restore the original first and then select a new one. The orbs don’t have to be round; here’s a fancy Windows 7 logo as the start button. The start orb change will work in the Aero and Aero basic (which Windows 7 Start uses) themes, but will not show up in the classic, Windows 2000 style themes.  Here’s how the new start button looks with the Aero Classic theme: There are tons of orbs available, including this cute smiley, so choose one that you like to make your computer uniquely yours. Conclusion This is a cute way to make your desktop unique, and can be a great way to make a truly personalized theme.  Let us know your favorite Start orb! Link Download the Windows 7 Start Button Changer Find more Start orbs at deviantART Similar Articles Productive Geek Tips Change the Windows 7 or Vista Power Buttons to Shut Down/Sleep/HibernateQuick Tip: Change the Registered Owner in WindowsSpeed up Windows Vista Start Menu Search By Limiting ResultsWhy Does My Password Expire in Windows?Change Your Computer Name in Windows 7 or Vista 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 Quickly Schedule Meetings With NeedtoMeet Share Flickr Photos On Facebook Automatically Are You Blocked On Gtalk? Find out Discover Latest Android Apps On AppBrain The Ultimate Guide For YouTube Lovers Will it Blend? iPad Edition

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• Is copy paste programming bad ?

  - by ring bearer

  With plain google as well as google code search tools it is easy to find how to program using some resource or solve certain problems ( such as a Java class, or a ftp block in perl etc) and so developers are so tempted to just purely copy paste the code (in a way re-use) - is this an incompetency? I have done this myself though I think I am a better programmer than many others I have seen. Who has the time to RTFM? In this age of information abundance, I do not think that copy paste programming is bad. Isn't that what sites like stackoverflow do anyway? People ask - ok here is my problem - how to solve it? now someone will post complete code and the person who asked the question would simply copy paste the most voted answer. No matter how small the problem is. I am working with a bunch of young coders who heavily rely on internet to get their job done. I see convenience (for example, you may be quite good with algorithms and such but you may not know how to use a BufferedReader in Java - would you read complete Javadoc for BufferedReader or look up some example of using it somewhere??) in copy pasting and modifying code to get the job done. What are the real dangers of copy paste coding that can impact their competency?

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• Functional programming and stateful algorithms

  - by bigstones

  I'm learning functional programming with Haskell. In the meantime I'm studying Automata theory and as the two seem to fit well together I'm writing a small library to play with automata. Here's the problem that made me ask the question. While studying a way to evaluate a state's reachability I got the idea that a simple recursive algorithm would be quite inefficient, because some paths might share some states and I might end up evaluating them more than once. For example, here, evaluating reachability of g from a, I'd have to exclude f both while checking the path through d and c: So my idea is that an algorithm working in parallel on many paths and updating a shared record of excluded states might be great, but that's too much for me. I've seen that in some simple recursion cases one can pass state as an argument, and that's what I have to do here, because I pass forward the list of states I've gone through to avoid loops. But is there a way to pass that list also backwards, like returning it in a tuple together with the boolean result of my canReach function? (although this feels a bit forced) Besides the validity of my example case, what other techniques are available to solve this kind of problems? I feel like these must be common enough that there have to be solutions like what happens with fold* or map. So far, reading learnyouahaskell.com I didn't find any, but consider I haven't touched monads yet. (if interested, I posted my code on codereview)

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• Thread safe GUI programming

  - by James

  I have been programming Java with swing for a couple of years now, and always accepted that GUI interactions had to happen on the Event Dispatch Thread. I recently started to use GTK+ for C applications and was unsurprised to find that GUI interactions had to be called on gtk_main. Similarly, I looked at SWT to see in what ways it was different to Swing and to see if it was worth using, and again found the UI thread idea, and I am sure that these 3 are not the only toolkits to use this model. I was wondering if there is a reason for this design i.e. what is the reason for keeping UI modifications isolated to a single thread. I can see why some modifications may cause issues (like modifying a list while it is being drawn), but I do not see why these concerns pass on to the user of the API. Is there a limit imposed by an operating system? Is there a good reason these concerns are not 'hidden' (i.e. some form of synchronization that is invisible to the user)? Is there any (even purely conceptual) way of creating a thread safe graphics library, or is such a thing actually impossible? I found this http://blogs.operationaldynamics.com/andrew/software/gnome-desktop/gtk-thread-awareness which seems to describe GTK differently to how I understood it (although my understanding was the same as many people's) How does this differ to other toolkits? Is it possible to implement this in Swing (as the EDT model does not actually prevent access from other threads, it just often leads to Exceptions)

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• C# Threading Background Process - Programming - How to?

  - by Magic

  Hello...I have been given the horrible task of doing this. Launch the website Take a screenshot Fill in the form details, click on Next Take a screenshot ... ... ... Rinse. Repeat. Now, with various combinations, this comes up to 300 screenshots. And I have to do this for 4 different browsers. Chrome, Firefox, IE 6 and IE 7. I cannot use tools which will capture the screenshot and store them, such as, SnagIT. I need to take a screenshot, copy it to a Word Document and take the second screenshot and take it to a Word Document. I thought, I will write a tiny utility which will help me do this. Here is the requirement spec that I put up for it - An executable which once launched seats itself in the System Tray. While it is active, all instances of Key Press (Print Scrn), it should write the contents to a Word Document as defined (either a default path or a user defined one). Save the document periodically. Now, my question is - if I am going to develop this using C# (Winforms application), how do I go about doing this. I can do a fair bit of C# programming and I am willing to learn. But I am not able to locate the references for how to do a background process so that it runs in the background. And while it runs, it has to capture the Print Scrn command. Can you folks point me to the right material where I can learn this? Theoretical references should suffice. But if there are practical references, then nothing like it. Thanks!

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• How to process Perl array element in Shell script

  - by joe

  For ex : in PERL @array = (1,2,3); system ("/tmp/a.sh @array" ); In shell script how to handle this array in shell script how to handle the shell script to receive as arguments? and how to use that array variable in shell script

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• How to secure svn+ssh checkout users?

  - by vvanscherpenseel

  All our SVN repositories are hosted on a dedicated machine on which all the developers have access. Every now and then we need to checkout a repository on a machine we don't own or operate ourselves. Currently we all use our own system (SSH) account for this, but instead I would like to use some generic 'checkoutsvn' user that can be used for this. This user is only used for checking out from a repository, but should not be allowed to log in to the system (no shell access). I tried to do this by setting the default shell of that account to /sbin/nologin but then SVN fails, as apparently svn+ssh requires shell access. How do you do this? Is there a good solution for this?

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• Put one monitor of a dual monitor windows system into standby

  - by Psycogeek

  Standby not Disabled! When running 2 monitors on windows 7 or Windows XP, I would like to be able to put one of the monitors at a time into standby. The method can be manual. When running 2 monitors , the second monitor is not always needed, shutting off the monitors own power switch will turn off the monitor, that does work Ok. Problems with that are , the delay with the monitor logo at turn on, and the power switch is not very accessable, and the switch might not live forever turning it on and off so many times. Using disable methods like devcon, WIN-P and Display, causes all the windows to properly move to the other monitor. While that is what a person would want to happen so they can get hold of the windows, that is not what I want to happen, and some things on the other monitor have to be re-arranged after a re-enable. By putting it into standby mode, nothing changes other than the monitor going into standby. Disconnecting the DVI cable still can cause the system to (properly) shift all the windows over to the one monitor, just like any of the disable methods do. That makes a mess of the windows, and is so unacceptable, that I would prefer to leave the monitor on, wasting power and the hardware, when it could easily go into standby for some time. For both monitors I am using a "MonitorOff" program that puts both monitors into standby, but I can not find a utility that will put only ONE monitor into standby for the windows system. If someone comes along and suggests "ultramon" you must know for a fact that it will put One of either of the monitors into actual standby. And it does not really suit me to use ultramon, I tested it (it was nice) and I did not feel that it was a program I wanted. The 2 monitors are running off of an ATI 4890 card, they are both hooked up DVI-I, the OS is both Windows 7 (primary) and Windows XP. In addition it would also be interesting to have seperate standby activity timers, and follow mouse kind of standby changes, but any manuel method , shortcut, batch , tray, or gadget kind of operation would be a good start.

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• How to create Windows Vista/Windows 7 Startup disk or Rescue disk or system restore points on a CD?

  - by goldenmean

  Hello, I have two laptops, one having Windows-Vista home premium and other one having Windows-7 professional. Both versions of OS are OEM installs(pre-installed when I bought the laptop) and I do not have the Windows Installation disks for them. usually the installation disks provide a repair option in case one needs to repair/rescue a improper windows installation. But since I dont have the installation disks, I want to create rescue disks/startup disks for these. My questions are : 1] How to create a system rescue disk/startup disk on a CD from these two versions of Windows? 2] Doesn't the system restore points which Vista/Windows-7 create, cannot be created on a CD disk instead of hard-disk? 3] If I have a manual backup of my windows registry, in which I have exported all the registry to a file and I have that file on a CD, how to restore that registry back to the windows installation which might not be booting up properly due to bad registry problem. EDIT: 4]Is there any way to use these system restore points directly during bootup of the laptop, if windows does cannot boot properly due to problem. First laptop is HP Pavillion dv6646 and second one is Sony VAIO VCPEE series. thank you. -AD

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• Installing Windows 7 over PXE, preferably with domain autojoin

  - by Ivan Vucica

  At an educational non-profit, I've inherited a previously set-up Windows domain that, after the first reinstall of the machines, we ended up not using by simply not joining machines back into the domain. Over last summer, before the annual reinstall for shipping machines to the summer school, I toyed with the idea of installing Windows 7 over network, instead of just imaging the machines. It took a bit longer than I expected to figure out the basics; honestly, I expected that Windows would be more friendly for PXE installation out of the box. What I'm interested in is best practices for installing Windows 7 over PXE with domain autojoin. I'd love it if the whole setup could optionally be hosted on a UNIX based system as well. I've had some success by preparing an ISO using Windows Deployment Kit, and loading the ISO into memory. This was needed since I wanted a menu, and I think I couldn't get PXELINUX to chainload into Windows' bootloader. Unfortunately, I couldn't figure out much about customization of the Windows setup in that timeframe nor could I get Samba to work properly; studying the stuff ended up being too lengthy, especially the portion where I edited a disk image on Windows and copied it outside. WDK didn't make things easier by mounting the disk image into RAM, and writing it in its entirety when done with it, making me a very sad boy. I've recently found a different approach, too, that appears to be closer to Microsoft's original idea for netboot deployment and does not involve ISOs. So my question boils down to the following. What exact approach do you use for netbooting Windows 7 setup? How can Windows 7 setup be best customized to be completely unattended, including installation on specific system partition and not destroying the data partition, creation of passworded admin and default user, choice of MAC-address-based hostname, and joining a domain? As much details as possible for everyone's future reference would be appreciated. WDS isn't a bad choice, but if a Linux-based install can be used, that'd be better.

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• Blank list of windows services

  - by Joe

  Recently when I open windows services (always as administrator) I get a blank list of services: When I try and click on one of the empty lines I get this "Script Error" message: This happens over and over again, after several times I restarted my computer. I can't pinpoint exactly when this started happening or if I made any specific changes to my computer at that time. Someone told my to try running scf /scannow as administrator, but when I try to do that the scan stops at 34% and I get the message: "Windows Resource Protection could not perform the requested operation." I am running Windows 7 Enterprise 64 bit, and I would really like to avoid reinstalling windows. Does anyone know how to fix this? Edit - Here is another attempt I made and some more information that might help: Following WhoIsRich's suggestion, I tried the command sfc /scannow /offbootdir=c:\ /offwindir=c:\windows. This gave the error message "The arguments passed to sfc are invalid. The offline windows directory specified points to the online system", and then I realized this command is meant to be run after booting from another system. Since I don't have my windows installation disk right now, I used my own system to create a recovery disk, and then restarted my computer and used the recovery disk to boot. I then ran the above command, and I got the following message: "Windows Resource Protection found corrupt files but was unable to fix some of them. Details are included in the CBS.log". I then restarted my computer and let it boot up normally. The problem with windows services persists, and the CBS.log file is a long log file with many entries, and I don't know if there is useful information in it, and if there is, how to find it.

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• Why does Windows 7 have three system partitions?

  - by Ben

  I am using Windows 7, and I wanted to make a System image (using Windows 7), but Windows 7 checked three partitions as System (100 MB + C (install partition) + D (my partition for my files, all programs are installed at C)). I don't want to backup my D partition, but that is not really the point. I don't want Windows messing with my other partitions and making them system. Is there a way to limit Windows 7 just to partition C (install partition)? If there is no way to stop Windows from making other partitions system, can I at least delete the files that make partition D system? PS: All these three partitions are on one physical disk, partitions from other disks aren't treated as System. FACTS: desktop PC, no OEM partitions, I personally have installed Windows 7 (many times) on the C partition. Why is my D partition checked as System partition when I try to create a System Image (using Windows 7 Ultimate built in tool), even though Windows (and all the software) are installed on the C partition? Is there a way to make D "normal" or non-system partition? Here is a picture of how it looks like if I try to create a system image. Once again, why is D also a system partition?

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• How to remove Media Center from Windows 8

  - by Arabella

  I bought 2 Windows 8 upgrades, 1 for my PC and 1 for my notebook. I added Windows Media Center to my notebook using the free offer in November (side note: the key was emailed to me within 5 minutes, I see many people have been complaining that it takes a few days). Today I decided to add WMC to my PC as well, so I went onto the Microsoft website, same like last time, and I received the email within a few minutes. Once I added WMC, entered the key and the computer rebooted, my activation is now broken: This product key is already being used on another PC. Try a different key or buy a new one. After rereading the product key email, I realised that the WMC key was exactly the same as the one I had received in November for my notebook (I used the same email, i.e. my Microsoft account Outlook email, for both). I didn't think this would be a problem, as on Microsoft's feature pack page it states: ...is limited to five licenses per customer per promotion. So then I decided, I'll just remove WMC from my PC and go back to Windows 8 Pro. So I turned off the WMC feature, PC restarted, activation still broken because my key has been replaced. I then tried to activate it with my original Pro key. The error it gave was that this key cannot be used with this version of Windows, as it is now Windows 8 Pro with Media Center and not Windows 8 Pro anymore. I've searched a bit and it seems the only way to remove it is do a clean install. I tried the Windows 8 Downgrade Helper, which told me I was already running Win 8 Pro when I tried to downgrade, and that I was running Win 8 Pro with Media center when I tried the other option. To sum up: How do I remove Windows Media Center from Windows 8 Pro without having to do a clean install?

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• Windows Process Activation Service on Windows Server 2008 R2

  - by DaeMoohn

  Hi, Are there any limitations based on Windows Server 2008 R2 versions for Windows Process Activation Service? (i.e. some features of WAS are unavailable, limitations on number of worker processes, etc.) Thanks a lot!

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• Running on Windows CE 6 'and' Windows XP

  - by Psychic

  Is it possible to create a small program that will run, without recompiling and without emulators, on both Windows CE 6 AND Windows XP SP3? From my knowledge, this isn't possible. Source code needs to be recompiled for the target platform. However, a hardware manufacturer for embedded boards is claiming otherwise. The application isn't anything complex, just a simple benchmarking tool analysing floating point operations, CPU ticks etc, and displaying the results on a plain GUI.

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• Windows Azure Learning Plan - Security

  - by BuckWoody

  This is one in a series of posts on a Windows Azure Learning Plan. You can find the main post here. This one deals with Security for  Windows Azure.   General Security Information Overview and general  information about Windows Azure Security - what it is, how it works, and where you can learn more. General Security Whitepaper – answers most questions http://blogs.msdn.com/b/usisvde/archive/2010/08/10/security-white-paper-on-windows-azure-answers-many-faq.aspx Windows Azure Security Notes from the Patterns and Practices site http://blogs.msdn.com/b/jmeier/archive/2010/08/03/now-available-azure-security-notes-pdf.aspx Overview of Azure Security http://www.windowsecurity.com/articles/Microsoft-Azure-Security-Cloud.html Azure Security Resources http://reddevnews.com/articles/2010/08/19/microsoft-releases-windows-azure-security-resources.aspx Cloud Computing Security Considerations http://www.microsoft.com/downloads/en/details.aspx?FamilyID=68fedf9c-1c27-4642-aa5b-0a34472303ea&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+MicrosoftDownloadCenter+%28Microsoft+Download+Center Security in Cloud Computing – a Microsoft Perspective http://www.microsoft.com/downloads/en/details.aspx?FamilyID=7c8507e8-50ca-4693-aa5a-34b7c24f4579&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+MicrosoftDownloadCenter+%28Microsoft+Download+Center Physical Security for Microsoft’s Online Computing Information on the Infrastructure and Locations for Azure Physical Security. The Global Foundation Services Group at Microsoft handles physical security http://www.globalfoundationservices.com/security/index.html Microsoft’s Security Response Center http://www.microsoft.com/security/msrc/ Software Security for Microsoft’s Online Computing Steps we take as a company to develop secure software Windows Azure is developed using the Trustworthy Computing Initiative http://www.microsoft.com/about/twc/en/us/default.aspx and  http://msdn.microsoft.com/en-us/library/ms995349.aspx Identity and Access in the Cloud http://blogs.msdn.com/b/technology_titbits_by_rajesh_makhija/archive/2010/10/29/identity-and-access-in-the-cloud.aspx Security Steps you should take While Microsoft takes great pains to secure the infrastructure, platform and code for Windows Azure, you have a responsibility to write secure code. These pointers can help you do that. Securing your cloud architecture, step-by-step http://technet.microsoft.com/en-us/magazine/gg296364.aspx Security Guidelines for Windows Azure http://redmondmag.com/articles/2010/06/15/microsoft-issues-security-guidelines-for-windows-azure.aspx  Best Practices for Windows Azure Security http://blogs.msdn.com/b/vbertocci/archive/2010/06/14/security-best-practices-for-developing-windows-azure-applications.aspx Active Directory and Windows Azure http://blogs.msdn.com/b/plankytronixx/archive/2010/10/22/projecting-your-active-directory-identity-to-the-azure-cloud.aspx Understanding Encryption (great overview and tutorial) http://blogs.msdn.com/b/plankytronixx/archive/2010/10/23/crypto-primer-understanding-encryption-public-private-key-signatures-and-certificates.aspx Securing your Connection Strings (SQL Azure) http://blogs.msdn.com/b/sqlazure/archive/2010/09/07/10058942.aspx Getting started with Windows Identity Foundation (WIF) quickly http://blogs.msdn.com/b/alikl/archive/2010/10/26/windows-identity-foundation-wif-fast-track.aspx

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• Windows Shared Hosting with Web Deploy Windows Shared Hosting with Web Deploy [closed]

  - by Tom

  Possible Duplicate: How to find web hosting that meets my requirements? I'm looking for not too expensive quality shared hosting with "good" support (responsive, I don't ask for in the minute replies hehe). Here are the features that I need/I'd like to have: Plesk Panel (optional and would be awesome) 10+ MSSQL Databases 10+ Domain names 10+ Emails account (with forwarding/catch-all) 1000MB+ Disk size 50GB+ Bandwidth ASP.NET MVC 3 support Web Deploy support (important) PHP/MySQL support (optional) I tried some good web hosts but never stumble on a very good one. I liked Arvixe and Softsys but I'd like to know some others companies too just to explore. Thank you very much!

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• Is the C programming language still used?

  - by Pankaj Upadhyay

  I am a C# programmer, and most of my development is for websites along with a few Windows application. As far as C goes, I haven't used it in a long time, as there was no need to. It came to me as a surprise when one of my friends said that she needs to learn C for testing jobs, while I was helping her learn C#. I figured that someone would only learn C for testing only if there is development done in C. In my knowledge, all the development related to COM and hardware design are also done in C++. Therefore, learning C doesn't make sense if you need to use C++. I also don't believe in historic significance, so why waste time and money in learning C? Is C is still used in any kind of new software development or anything else?

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• Can't connect to workgroup

  - by Bonyfus Martin

  I have two computers in my workgroup. My laptop has Windows 7 on it and desktop has Windows Server 2008 on it. I can ping and connect to the Windows Server 2008 from my laptop but I cannot ping or connect to my laptop from Windows Server 2008. Both computers are in the same workgroup, and their IP addresses use the same subnet mask. Does anyone know why I cannot connect to my laptop from the Windows Server 2008 machine?

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• How to get better at solving Dynamic programming problems

  - by newbie

  I recently came across this question: "You are given a boolean expression consisting of a string of the symbols 'true', 'false', 'and', 'or', and 'xor'. Count the number of ways to parenthesize the expression such that it will evaluate to true. For example, there is only 1 way to parenthesize 'true and false xor true' such that it evaluates to true." I knew it is a dynamic programming problem so i tried to come up with a solution on my own which is as follows. Suppose we have a expression as A.B.C.....D where '.' represents any of the operations and, or, xor and the capital letters represent true or false. Lets say the number of ways for this expression of size K to produce a true is N. when a new boolean value E is added to this expression there are 2 ways to parenthesize this new expression 1. ((A.B.C.....D).E) ie. with all possible parenthesizations of A.B.C.....D we add E at the end. 2. (A.B.C.(D.E)) ie. evaluate D.E first and then find the number of ways this expression of size K can produce true. suppose T[K] is the number of ways the expression with size K produces true then T[k]=val1+val2+val3 where val1,val2,val3 are calculated as follows. 1)when E is grouped with D. i)It does not change the value of D ii)it inverses the value of D in the first case val1=T[K]=N.( As this reduces to the initial A.B.C....D expression ). In the second case re-evaluate dp[K] with value of D reversed and that is val1. 2)when E is grouped with the whole expression. //val2 contains the number of 'true' E will produce with expressions which gave 'true' among all parenthesized instances of A.B.C.......D i) if true.E = true then val2 = N ii) if true.E = false then val2 = 0 //val3 contains the number of 'true' E will produce with expressions which gave 'false' among all parenthesized instances of A.B.C.......D iii) if false.E=true then val3=( 2^(K-2) - N ) = M ie. number of ways the expression with size K produces a false [ 2^(K-2) is the number of ways to parenthesize an expression of size K ]. iv) if false.E=false then val3 = 0 This is the basic idea i had in mind but when i checked for its solution http://people.csail.mit.edu/bdean/6.046/dp/dp_9.swf the approach there was completely different. Can someone tell me what am I doing wrong and how can i get better at solving DP so that I can come up with solutions like the one given above myself. Thanks in advance.

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• Reading the tea leaves from Windows Azure support

  - by jamiet

  A few idle thoughts… Three months ago I had an issue regarding Windows Azure where I was unable to login to the management portal. At the time I contacted Azure support, the issue was soon resolved and I thought no more about it. Until today that is when I received an email from Azure support providing a detailed analysis of the root cause, the fix and moreover precise details about when and where things occurred. The email itself is interesting and I have included the entirety of it below. A few things were interesting to me: The level of detail and the diligence in investigating and reporting the issue I found really rather impressive. They even outline the number of users that were affected (127 in case you can’t be bothered reading). Compare this to the quite pathetic support that another division within Microsoft, Skype, provided to Greg Low recently: Skype support and dead parrot sketches   This line: “Windows Azure performed a planned change from using the Microsoft account service (formerly Windows Live ID) to the Azure Active Directory (AAD) as its primary authentication mechanism on August 24th. This change was made to enable future innovation in the area of authentication – particularly for organizationally owned identities, identity federation, stronger authentication methods and compliance certification. ” I also found to be particularly interesting. I have long thought that one of the reasons Microsoft has proved to be such a money-making machine in the enterprise is because they provide the infrastructure and then upsell on top of that – and nothing is more infrastructural than Active Directory. It has struck me of late that they are trying to make the same play of late in the cloud by tying all their services into Azure Active Directory and here we see a clear indication of that by making AAD the authentication mechanism for anyone using Windows Azure. I get the feeling that we’re going to hear much much more about AAD in the future; isn’t it about time we could log on to SQL Azure Windows Azure SQL Database without resorting to SQL authentication, for example? And why do Microsoft have two identity providers – Microsoft Account (aka Windows Live ID) and AAD – isn’t it about time those things were combined? As I said, just some idle thoughts. Below is the transcript of the email if you are interested. @Jamiet  This is regarding the support request <redacted> where in you were not able to login into the windows azure management portal with live id. We are providing you with the summary, root cause analysis and information about permanent fix: Incident Title: You were unable to access Windows Azure Portal after Microsoft Account to Azure Active Directory account Migration. Service Impacted: Management Portal Incident Start Date and Time: 8/24/2012 4:30:00 PM Date and Time Service was Restored: 10/17/2012 12:00:00 AM Summary: Windows Azure performed a planned change from using the Microsoft account service (formerly Windows Live ID) to the Azure Active Directory (AAD) as its primary authentication mechanism on August 24th.   This change was made to enable future innovation in the area of authentication – particularly for organizationally owned identities, identity federation, stronger authentication methods and compliance certification.   While this migration was largely transparent to Windows Azure users, a small number of users whose sign-in names were part of a Windows Live Custom Domain were unable to login.   This incompatibility was not discovered during the Quality Assurance testing phase prior to the migration. Customer Impact: Customers whose sign-in names were part of a Windows Live Custom Domain were unable to sign-in the Management Portal after ~4:00 p.m. PST on August 24th, 2012.   We determined that the issue did impact at least 127 users in 98 of these Windows Live Custom Domains and had a maximum potential impact of 1,110 users in total. Root Cause: The root cause of the issue was an incompatibility in the AAD authentication service to handle logins from Microsoft accounts whose sign-in names were part of a Windows Live Custom Domains.  This issue was not discovered during the Quality Assurance testing phase prior to the migration from Microsoft Account (MSA) to AAD. Mitigations: The issue was mitigated for the majority of affected users by 8:20 a.m. PST on August 25th, 2012 by running some internal scripts to correct many known Windows Live Custom Domains.   The remaining affected domains fell into two categories: Windows Live Custom Domains that were not corrected by 8/25/2012. An additional 48 Windows Live Custom Domains were fixed in the weeks following the incident within 2 business days after the AAD team received an escalation from product support regarding those accounts. Windows Live Custom domains that were also provisioned in Office365. Some of the affected Windows Live Custom Domains had already been provisioned in AAD because their owners signed up for Office365 which is a service that also uses AAD.   In these cases the Azure customers had to work around the issue by renaming their Microsoft Account or using a different Microsoft Account to administer their Azure subscription. Permanent Fix: The Azure Active Directory team permanently fixed the issue for all customers on 10/17/2012 in an upgraded release of the AAD service.

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