FIX: Second Instance of STDLL Object Causes Exception Error (318969)


The information in this article applies to:

  • Microsoft Visual FoxPro for Windows 7.0
This article was previously published under Q318969

SYMPTOMS

If you run Visual FoxPro 7.0 on a computer with the locale set to a non-English language that has a corresponding Visual FoxPro run-time file, and you use the CreateObject() function to create two instances of a single-threaded DLL that was created with Visual FoxPro, you receive the following error message after Visual FoxPro creates the second instance of single-threaded DLL:
Fatal exception: Exception code: C0000005
This error might not occur if Vfp7renu.dll is in the VFP7 home directory or the default directory.

RESOLUTION

To resolve this problem, obtain the latest service pack for Visual FoxPro for Windows 7.0. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

316964 How to Obtain the Latest Visual FoxPro for Windows 7.0 Service Pack

STATUS

Microsoft has confirmed that this is a problem in Microsoft Visual FoxPro for Windows 7.0.

This problem was first corrected in Visual FoxPro for Windows 7.0 Service Pack 1.

MORE INFORMATION

Steps to Reproduce the Behavior


The following steps reproduce the problem when you use the German locale. This problem occurs in any non-English language that has its own localized run-time files.
  1. Configure the German locale on your computer. Make sure that this is the default locale for the operating system.
  2. Paste the following code in a program (.prg) file, and then run the program from the Command window:
    Set Safety off
  StrToFile( ;
   "Define Class ClsA as Custom OlePublic"+Chr(13)+"Enddefine", ;
   "b010828_1a.Prg" ;
  )
  Build Project b010828_1a from b010828_1a.Prg
  Build Dll b010828_1a from b010828_1a
  StrToFile( ;
   "Define Class ClsB as Custom OlePublic"+Chr(13)+"Enddefine", ;
   "b010828_1b.Prg" ;
  )
  Build Project b010828_1b from b010828_1b.Prg
  Build Dll b010828_1b from b010828_1b
  oRefA = CreateObject("b010828_1a.ClsA")
  oRefB = CreateObject("b010828_1b.ClsB")
RETURN
Note that you receive the error that is described in the "Symptoms" section, and Visual FoxPro quits.

To remove the entries that are placed in the Windows registry by steps 1 and 2, run the following code from the Command window: 
CD <dir with STDLLs>
DECLARE INTEGER DllUnregisterServer in b010828_1a.dll
? DllUnregisterServer()
CLEAR DLLS DllUnregisterServer

DECLARE INTEGER DllUnregisterServer in b010828_1b.dll
? DllUnregisterServer()
CLEAR DLLS DllUnregisterServer
Modification Type:MajorLast Reviewed:5/1/2002
Keywords:kbbug kbCodeSnippet kbDSupport kbVFP700sp1fix KB318969
©2002 Microsoft Corporation. All rights reserved.