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• Using Samba to share a folder from a Linux guest with a Windows host in VirtualBox

  - by AmV

  I would like to share a folder from a Linux Guest with a Windows host (with read and write access if possible) in VirtualBox. I read in these two links: here and here that it's possible to do this using Samba, but I am a little bit lost and I need more information on how to proceed. So far, I managed to set up two network adapters (one NAT and one host-only) and install Samba on the Linux guest, but now I have the following questions: What do I need to type in samba.conf to share a folder from the Linux guest? (the tutorial provided in one of the links above only explains how to share home directories) Are there any Samba commands that need to be executed on the guest to enable sharing? How do I make sure that these folders are only available to the host OS and not on the Internet? Once the Linux guest is setup, how do I access each of the individual shared folders from the Windows host? I read that I need to mount a drive on Windows to do this, but do I use Samba logins, or Linux logins, also do I use localhost? or do I need to set up an IP for this? Thanks!

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• Enlarging everything on 16" 1920x1080 notebook display in Windows 7

  - by Rob

  Does Windows 7 have an option to enlarge everything on the screen, e.g. via a spi setting? How well does this work? i.e. do the objects look clear when enlarged? I ask this because sometimes software that enlarges non-photographic bitmap images e.g. icons and symbols can leave them artifacted with harsh jaggier slopes and blurred lines. I've tried the dpi setting in Windows XP but it doesn't enlarge everything, and some things are not so clear as described above. I'm looking at a notebook/laptop with this spec. I've already enjoyed using a 15.4" 1920x1200 display for 5 years. I've tried the dpi setting in Windows XP but it doesn't enlarge everything, and some things are not so clear as described above. I am buying a laptop for my father who will probably prefer larger objects on the screen, although I want to provide some future proofing by allowing more on the screen if needed. I'm not interested in answers that debate the effectiveness or otherwise merits of 1920x1080 on a 16" display, please. The alternative option of 1366x768 seems too little.

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• DVI output only working on Windows, not during booting or on Linux

  - by Mononofu

  So yesterday I booted my laptop up and the external monitor I have it connected to just stayed black. At first, I thought the problem would go away when Ubuntu was loaded, but it didn't. I tried to reboot a few times, to no avail. Then I decided to give Windows 7 a try, and suddenly (at the login-screen), my external monitor turned on and worked like normal. I have connected the monitor via DVI, and this only seems to work with Windows now. I don't even get a signal in my BIOS! Mind you, everything was working fine before that, and I didn't change a single thing. I then tried to connect the monitor via VGA (from my DVI jack, which can output VGA using an adaptor), and it worked again. However, 1920x1200 using VGA looks like crap - black print on white background is basically illegible. Do you have any ideas how to fix this peculiar problem? I only use windows for gaming, so it's no real help that it still works normally. Please also excuse any spelling mistakes, I am practically typing this blindly. Edit: I only have one graphics card in my laptop, and I can't select anything related to that in my BIOS. In fact, I can pretty much do almost nothing there. My laptop is a Nexoc Osiris E703, graphics gard is a GeForce Go 7900 GTX. As I mentioned before, DVI output during booting and on Ubuntu was working fine for years before yesterday!

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• SQL Server 2005 SE SP3 on Windows Server 2008 R2 x64 premature query disconnections

  - by southernpost

  New Dell PowerEdge R910, 4x8 Intel X7560, 192GB RAM, hardware NUMA, local RAID, Broadcom NetExtreme II multiport NIC, unteamed, TCP Offload disabled, RSS disabled, NetDMA disabled, Hyperthreading disabled. SQL Server 2005 SE x64 SP3 on Windows Server 2008 R2 EE x64. No other apps on server. Max Mem = 180GB, Max DOP = 4. Existing Windows Server 2003 R2 EE x64 app server connecting to Dell via firewall using SQL Authenticated logins. Symptoms: Intermittent errors at the app server: A transport-level error has occurred when sending the request to the server. (provider: TCP Provider, error: 0 - An existing connection was forcibly closed by the remote host.) Findings: Running queries from SSMS located on another machine within the same domain as the SQL Server run without error. SQLIO showed good performance. Windows and SQL logs show no related messages. Microsoft reveiwed PssDiag trace and stated that "We are not seeing timeouts from SQL Side. The queries bring run against the database are timing out within 9secs. This is a database connectivity error." "we can also see from the AttnSeq column that we are also not seeing any Attentions from the SQL Side.". Dell has confirmed that we are using the latest Broadcom drivers.

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• DVI output _only_ working on Windows, not during booting or on Linux

  - by Mononofu

  So yesterday I booted my laptop up and the external monitor I have it connected to just stayed black. At first, I thought the problem would go away when Ubuntu was loaded, but it didn't. I tried to reboot a few times, to no avail. Then I decided to give Windows 7 a try, and suddenly (at the login-screen), my external monitor turned on and worked like normal. I have connected the monitor via DVI, and this only seems to work with Windows now. I don't even get a signal in my BIOS! Mind you, everything was working fine before that, and I didn't change a single thing. I then tried to connect the monitor via VGA (from my DVI jack, which can output VGA using an adaptor), and it worked again. However, 1920x1200 using VGA looks like crap - black print on white background is basically illegible. Do you have any ideas how to fix this peculiar problem? I only use windows for gaming, so it's no real help that it still works normally. Please also excuse any spelling mistakes, I am practically typing this blindly. Edit: I only have one graphics card in my laptop, and I can't select anything related to that in my BIOS. In fact, I can pretty much do almost nothing there. My laptop is a Nexoc Osiris E703, graphics gard is a GeForce Go 7900 GTX. As I mentioned before, DVI output during booting and on Ubuntu was working fine for years before yesterday!

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• MSSQL 2008 login failed for windows authentication

  - by Force Flow

  I'm running Microsoft SQL 2008 on a Windows 2008 Server. The MSSQL server server authentication is set to SQL Server and Windows Authentication mode. I have created an active directory security group "xyz app users". I have added a normal user (without any active directory admin privledges) and a user with domain admin privledges to the "xyz app users" group. I have added the group to the MSSQL management console as a login user. This group is a member of the public server role and is mapped to two databases. On a workstation, when the normal user is logged in, I configure a DSN ODBC connection, and I'm able to successfully create the DSN and test the SQL connection. However, when I'm logged in as the user with domain admin privledges, when I attempt to configure the DSN ODBC connection, I can't get past the login ID configuration screen. If I select "windows authentication" and click "next", I get an error: Connection failed: SQLState: '28000' SQL Server Error: 18456 [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user 'mydomain\myuser' On the server's application event logs, this error appears: Login failed for user 'mydomain\myuser'. Reason: Token-based server access validation failed with an infrastructure error. Check for previous errors. [CLIENT: 172.x.x.x] And in MSSQL's event logs: Error: 18456, Severity: 14, State: 11 Solutions that I've seen so far do not seem to fit this situation (some solutions I've seen are only applicable when the BUILDIN\Administrator is being used locally on the server, which is not the case here).

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• Windows OS level file open event trigger

  - by john

  Colleagues, I have need to run a script/program on certain basic OS level events. In particular when a file in Windows is opened. The open may be read-only or to edit, and may be initiated by a number of means, either from windows explorer (open or ), be selected from a viewing or editing application from the native file chooser, or drag-n-drop into an editing or viewing application. Further, i need the trigger to "hold" the event from completing the action until the runtime on the program has completed. The event handler program may return a pass state, or fail state. If fail state has been returned, then the event must disallow the initially requested action. Lastly, I need to add to the file in question a property or attribute that will contain metadata that will be used by the above event trigger handler program to make a determination as to the pass/fail condition that will ultimately determine if the user is permitted to open the file. Please note that this is NOT a windows event log situation, but one at the OS level file open event. thanks very much for your help. regards, j

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• User switching without logging off

  - by mrh1967

  We need to switch users without logging off so we can remotely administrate a PC running with a limited user that will disconnect from the VPN if the user logs off. I've got this working by killing the explorer process and then running explorer.exe with the administrator user credentials as the following code shows: private void btnOk_Click(object sender, EventArgs e) { IntPtr tokenHandle = new IntPtr(0); if (LogonUser("administrator", Environment.UserDomainName, txtPassword.Text, 3, 0, ref tokenHandle)) { ProcessStartInfo psi = new ProcessStartInfo(@"C:\Windows\explorer.exe"); psi.UserName = "administrator"; char[] pword = txtPassword.Text.ToCharArray(); psi.Password = new System.Security.SecureString(); foreach (char c in pword) { psi.Password.AppendChar(c); } psi.UseShellExecute = false; psi.LoadUserProfile = true; restartExplorer(psi); this.Close(); } else { MessageBox.Show("Wrong password", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation); } } private void restartExplorer(ProcessStartInfo psi) { Process[] procs = System.Diagnostics.Process.GetProcesses(); foreach (Process p in procs) { if (p.ProcessName == "explorer") { p.Kill(); break; } } System.Diagnostics.Process.Start(psi); } [DllImport("advapi32.dll", SetLastError = true)] public extern static bool LogonUser(String lpszUsername, String lpszDomain, String lpszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken); This code and similar code that does the same but makes the ProcessStartInfo for the limited user works perfectly and allows changing between the limited and administrator accounts without disconnecting the VPN but it has one problem - If we use this to change to the administrator user, make some changes to the system, then change back to the limited user all works ok until the limited user logs off when a blank desktop is displayed until CTRL-ALT-DEL is pressed and the user is logged off again. Because we block CTRL-ALT-DEL the PC effectively hangs until it is powered off. Does anyone know how to stop this from happening so we can change users without the PC hanging when they log off?

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• DSOFramer.ocx Hosting word documents in 64 bit Windows Forms

  - by Santhosh

  It looks like the DSOFramer.ocx component is not available for download anymore from MSDN as described here. Also the DSOFramer component is a 32 bit component. Given this, i have 2 questions: Is there any other alternative for hosting a word document in a Windows Form apart from using the DSOFramer.ocx component? If i move to Windows 64 bit operating system, and run the windows form as a native 64 bit process, then how do I host the word document in a 64 bit process?

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• authentication problem on windows vista (cookie is getting written but httpcontext.current.user is n

  - by gaurav

  authentication problem on windows vista (iis7) (cookie is getting written but httpcontext.current.user is null)

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• How to diagnose cause, fix, or work around Adobe ActiveX / COM related error 0x80004005 progmaticall

  - by Streamline

  I've built a C# .NET app that uses the Adobe ActiveX control to display a PDF. It relies on a couple DLLs that get shipped with the application. These DLLs interact with the locally installed Adobe Acrobat or Adobe Acrobat Reader installed on the machine. This app is being used by some customer already and works great for nearly all users ( I check to see that the local machine is running at least version 9 of either Acrobat or Reader already ). I've found 3 cases where the app returns the error message "Error HRESULT E_FAIL has been returned from a call to a COM component" when trying to load (when the activex control is loading). I've checked one of these user's machines and he has Acrobat 9 installed and is using it frequently with no problems. It does appear that Acrobat 7 and 8 were installed at one time since there are entries for them in the registry along with Acrobat 9. I can't reproduce this problem locally, so I am not sure exactly which direction to go. The error at the top of the stacktrace is: System.Runtime.InteropServices.COMException (0x80004005): Error HRESULT E_FAIL has been returned from a call to a COM component. Some research into this error indicates it is a registry problem. Does anyone have a clue as to how to fix or work around this problem, or determine how to get to the core root of the problem? The full content of the error message is this: System.Runtime.InteropServices.COMException (0x80004005): Error HRESULT E_FAIL has been returned from a call to a COM component.    at System.Windows.Forms.UnsafeNativeMethods.CoCreateInstance(Guid& clsid, Object punkOuter, Int32 context, Guid& iid)    at System.Windows.Forms.AxHost.CreateWithoutLicense(Guid clsid)    at System.Windows.Forms.AxHost.CreateWithLicense(String license, Guid clsid)    at System.Windows.Forms.AxHost.CreateInstanceCore(Guid clsid)    at System.Windows.Forms.AxHost.CreateInstance()    at System.Windows.Forms.AxHost.GetOcxCreate()    at System.Windows.Forms.AxHost.TransitionUpTo(Int32 state)    at System.Windows.Forms.AxHost.CreateHandle()    at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)    at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)    at System.Windows.Forms.AxHost.EndInit()    at AcrobatChecker.Viewer.InitializeComponent()    at AcrobatChecker.Viewer..ctor()    at AcrobatChecker.Form1.btnViewer_Click(Object sender, EventArgs e)    at System.Windows.Forms.Control.OnClick(EventArgs e)    at System.Windows.Forms.Button.OnClick(EventArgs e)    at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)    at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)    at System.Windows.Forms.Control.WndProc(Message& m)    at System.Windows.Forms.ButtonBase.WndProc(Message& m)    at System.Windows.Forms.Button.WndProc(Message& m)    at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)    at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)    at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

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• Message pump in C# Windows service

  - by Pickles

  Hello, I have a Windows Service written in C# that handles all of our external hardware I/O for a kiosk application. One of our new devices is a USB device that comes with an API in a native DLL. I have a proper P/Invoke wrapper class created. However, this API must be initialized with an HWnd to a windows application because it uses the message pump to raise asynchronous events. Besides putting in a request to the hardware manufacturer to provide us with an API that does not depend on a Windows message pump, is there any way to manually instantiate a message pump in a new thread in my Windows Service that I can pass into this API? Do I actually have to create a full Application class, or is there a lower level .NET class that encapsulates a message pump? Thanks

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• Windows services

  - by user280154

  Hi, i have a windows application and i need to change it into a windows service, How can i check whether the windows service is running or not without using any external service to keep a check on the main service. Is there any way to check it within the main service as i have tried work on it but if the windows service is stopped then there is no way i can check on it. Do i have to implement the thread(keep alive thread) for this, if so then how to do it. Please help. Thanks in adv.

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• Memcached with Windows and .NET

  - by Funky81

  Is there anyone already implement memcached for production use in Windows environment? Because many blogs that I've read, it's not recommended to run memcached in Windows especially for production use, for example running memcached on windows. And one more thing, which memcached client that is good to use with c# and .net 3.5 ? I've found many alternate such as Memcached Providers @ Codeplex, Beitmemcached, and memcached provider @ Sourceforge

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• WCF via Windows Service - Authenticating Clients

  - by Sean

  I am a WCF / Security Newb. I have created a WCF service which is hosted via a windows service. The WCF service grabs data from a 3rd party data source that is secured via windows authentication. I need to either: Pass the client's privileges through the windows service, through the WCF service and into the 3rd party data source, or... Limit who can call the windows service / WCF service to members of a particular AD group. Any suggestions on how I can do either of these tasks?

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• Cannot access website using host headers on local windows 7 and iis 7

  - by Irman

  I have problem of accessing my website created using visual studio on my local pc. the pc using windows 7 with static ip address has been configured and i have added a hostname "192.168.0.1 hosts myweb.mylocal.com" on c:\windows\system32\driver\etc. on the IIS i have configured the binding myweb.mylocal.com with impersonation set enabled and windows authentication is enabled. the user login just keep prompting eventhough i have entered the correct username and password.

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• Visual Studio 2005 and Windows SDK 6.1 (Server 2008)

  - by bde

  I am trying to figure out how Visual Studio 2005 and the Windows SDK 6.1 integrate in a command line build environment (if at all). I am mostly interested in x64 development, but also just in how these two packages fit together. Is it possible/advisable to use the compiler and linker from Visual Studio 2005 and the headers/libraries from the newer Windows SDK 6.1? Also, is it possible to use the devenv command (part of VS2005) in the Windows SDK 6.1 build environment?

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• Windows Network Programming

  - by bdhar

  I am planning to get some good book for Windows Socket Programming in VC++. I have 2+ years of experience in working with VC++/ATL/COM/MFC; but not in the networking domain. I have been doing some search in Google for "Windows network programming" books. There are few but they have both good and bad comments scattered all over; and I am not able to decide anything. Please recommend some good book with Pros and Cons. The books I found are below. Windows Sockets Network programming Network Programming for Microsoft Windows Thanks.

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• Why can't I declare C# methods virtual and static?

  - by Luke

  I have a helper class that is just a bunch of static methods and would like to subclass the helper class. Some behavior is unique depending on the subclass so I would like to call a virtual method from the base class, but since all the methods are static I can't create a plain virtual method (need object reference in order to access virtual method). Is there any way around this? I guess I could use a singleton.. HelperClass.Instance.HelperMethod() isn't so much worse than HelperClass.HelperMethod(). Brownie points for anyone that can point out some languages that support virtual static methods. Edit: OK yeah I'm crazy. Google search results had me thinking I wasn't for a bit there.

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• How do you work out the IIS Virtual Path for an application?

  - by joshcomley

  When I try to change the ASP.NET version to v4 on IIS 6, I receive the following warning: Changing the Framework version requires a restart of the W3SVC service. Alternatively, you can change the Framework version without restarting the W3SVC service by running: aspnet_regiis.exe -norestart -s IIS-Viirtual-Path Do you want to continue (this will change the Framework version and restart the W3SVC service)? How do I work out IIS-Virtual-Path? I have tried the obvious paths i.e.: aspnet_regiis.exe -norestart -s "/WebSites/Extranet/AppName" Where WebSites is the name of the folder in IIS, Extranet the name of the root app and AppName the name of the Virtual Directory application I am trying to change. Thanks! Edit: How do I work out the virtual path for the Auth virtual directory in following IIS6 setup: I have tried: aspnet_regiis.exe -norestart -s "/Web Sites/Extranet/Auth" aspnet_regiis.exe -norestart -s "Auth" I get: Installation stopped because the specified path (WhateverIPutIn) is invalid.

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• How to do things within a windows service?

  - by Kovu

  Hi, I have an application, written by me in C#.net 2.0 - when the application is opened, a timer will check every 3 seconds for x. If x happens, it shows a warning in a windows form. Is there a possibility to install this timer and the windows form call in a windows-service? So that the timer ticks every time a system is up and shows the message then?

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• WCF via Windows Service - Authinticating Clients

  - by Sean

  I am a WCF / Security Newb. I have created a WCF service which is hosted via a windows service. The WCF service grabs data from a 3rd party data source that is secured via windows authentication. I need to either: Pass the client's priveleges through the windows service, through the WCF service and into the 3rd party data source, or... Limit who can call the windows service / wcf service to members of a particular AD group. Any suggestions on how I can do either of these tasks?

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• How can you open windows program by pressing a button on web page

  - by Dani AM

  How can you open windows program by pressing a button on web page I develop web app in asp.net, and I want to do some action in windows when press button on the web page, For example: when you press Messenger button in http://www.msn.com/?ocid=hmlogout windows live messenger will open in your computer, Is there a certain technique to do that ? thanks for any suggestion. Dani.

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• Why does my 64-bit IIS app pool show 3 gigabytes more virtual memory than private memory?

  - by Brett

  I have an ASP.Net application that I am running on 64-bit IIS 6 on Windows XP x64. When I open performance counters after one page hit of a trivial page, I see a Private Bytes of about 88 megs, but a Virtual Bytes of about 3 Gigs. When I try the same thing with a VERY trivial ASP.Net app, I get the same result. We see something similar on Windows Server 2003 in production -- there it is an issue because we recycle when the virtual memory consumed outgrows a limit. Before we make any changes to our recycling settings, we'd like to answer the following questions: Why does the app pool grab such a large hunk of virtual memory? Is the amount of virtual memory headroom the app requests configurable? Thanks! Brett

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• From within an ISAPI filter, how to determine the virtual path for an IIS application?

  - by Cheeso

  Is there a way, inside an ISAPI Filter, to determine the virtual path for the IIS application or virtual directory? It's basically the same question as IIS Root Path vs Path of virtual directory, but rather than within an ASP.NET application, I Want this from within an ISAPI filter.

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