BUG: Visual Basic .NET or Visual Basic 2005 QuickStart TestClient.exe sample hangs on Windows NT 4.0 (309549)



The information in this article applies to:

  • Microsoft Visual Basic .NET (2002)
  • Microsoft Visual Basic .NET (2003)
  • Microsoft .NET Framework
  • Microsoft Visual Basic 2005 Express Edition

This article was previously published under Q309549

SYMPTOMS

When you run the Visual Basic .NET or Visual Basic 2005 QuickStart TestClient.exe sample on Microsoft Windows NT 4.0, the sample stops responding (hangs) before the page is loaded in Microsoft Internet Explorer.

The TestClient.exe sample is located in the following folder:

..\Program Files\Microsoft Visual Studio .NET\ FrameworkSDK\Samples\QuickStart\Howto\Samples\Interop\Testclient_2\VB



Note In Visual Studio 2005, the TestClient.exe sample is located in the following folder:

..:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\QuickStart\howto\samples\interop\testclient_2\vb

CAUSE

This problem occurs because the Console.Readline method does not pump messages on Windows NT 4.0 because of the operating system implementation.

RESOLUTION

To resolve this problem, follow these steps:
  1. In TestClient.vb, locate the following line of code:
    Imports System.Runtime.InteropServices
    						
    and insert the following code after this line:
    Imports System.Threading
    					
  2. In TestClient.vb, locate the following code
    webBrowser.GoHome()
    						
    and insert the following code after this line:
    Thread.CurrentThread.Join()
    					
  3. In TestClient.vb, remove the following section of code:
    Console.WriteLine("Press Enter to quit")
    Dim s As String = Console.ReadLine			
    Do While s <> ""
       s = Console.ReadLine
    Loop
    					
  4. If you have the project open in Microsoft Visual Studio .NET or Visual Studio 2005, on the Build menu, click Rebuild All.

    Alternately, you can follow these steps to use Make files to rebuild the project:
    1. From the Visual Studio .NET or from the Visual Studio 2005 command prompt, run the nmake command to rebuild the TestClient.vb file in the ..\Testclient_2\VB directory.
    2. Run TestClient.exe to run the sample.
    3. To stop running the sample, close the browser window manually, and press the CTRL+C key combination to free the command window.

STATUS

Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.

Modification Type:MinorLast Reviewed:3/11/2006
Keywords:kbvs2005applies kbvs2005swept kbvs2002sp1sweep kbbug kbpending kbreadme KB309549