FIX: Problems Using Database Classes with Jet 3.0 under NT 4.0

• Microsoft Visual C++, 32-bit Editions, versions 4.0, 4.1, 4.2
• Microsoft Visual C++, 32-bit Editions, versions 4.0, 4.0a, 4.1, 4.2, 4.2b
  on the following platforms: x86

SYMPTOMS

Using a Microsoft Access 7.0 data source under Windows NT 4.0 may cause the following problems:

1. An MFC Database (ODBC, DAO) application may crash upon exit, with the following error message:

   "The instruction at 0x04210085 referenced memory at 0x04210085. The memory cannot be read."

   The exact addresses may be different.



2. Opening and closing a CDatabase object in a loop may cause the following error:

   "Unhandled exception in <appname.exe> .... Access Violation"




3. Class Wizard may crash while creating a recordset based on an Access data source.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug was corrected in the ODBC drivers included with Visual C++ 5.0 and the ODBC Drivers included with Office 97 Value Pack.

RESOLUTION

For more information about obtaining the newer drivers, please see the following article in the Microsoft Knowledge Base:

Q159674 WX1350: ODBC Desktop Database Drivers 3.5 for 32-Bit Programs

Q151186 ACC95: Updated Jet DLLs Available on MSL

Q143163 PRB: Problems Running Microsoft Jet 3.0 on Windows NT 4.0

Q156298 FIX: Error on Disconnecting from ODBC Desktop Drivers

Additional query words: kbVC400bug

Keywords : kbDAO kbDatabase kbMFC kbODBC kbVC
Version : 4.0 4.0a 4.1 4.2 4.2b
Platform : NT WINDOWS
Issue type : kbbug