PRB: Visual C++ Debugger Can Fail on Pentium III Computers

ID: Q234620


The information in this article applies to:
  • Microsoft Visual C++, 32-bit Editions, version 6.0


SYMPTOMS

While debugging a DirectX application in the Visual C++ debugger on a Pentium III computer, you can get the following error:

Unhandled exception in D3DIM.DLL 0xC000001D: Illegal instruction
If you run the application outside the debugger, it may run without an error.


CAUSE

On the Pentium III, exceptions are unmasked when debugging. This produces an error "Unhandled Exceptions" or "Illegal Instructions" error in Windows 98.


RESOLUTION

The fix requires an updated version of VMCPD.VXD. You can get this file by contacting Microsoft Technical Support at:

http://www.microsoft.com/support/
Copy the file to the WINDOWS\SYSTEM directory and restart the computer.

The updated version of the file is included in the Windows 98 update available for free download from the Microsoft internet site.

Additional query words:

Keywords : kbDebug
Version : winnt:6.0
Platform : winnt
Issue type : kbprb


Last Reviewed: December 7, 1999
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