Article ID: 121434 - View products that this article applies to.
This article was previously published under Q121434
Windows NT allows you to specify a post mortem debugger for unhandled User mode exceptions. A general protection (GP) fault message is one of the many examples of a User mode exception. This allows you to see what went wrong in the code by examining where the program caused the fault, as well as the condition of registers, memory, and the stack.
By default, Windows NT used a 32-bit version of Dr. Watson as a post mortem debugger. The Dr. Watson log obtained from application users can be useful to the developers of the application in determining the cause of failure.
When the Win32 SDK is installed, the default post mortem debugger is changed to the kernel debugger. When Microsoft Visual C++ version 2.00 is installed, the default postmortem debugger is changed to the Visual C++ interface.
In order to change the default debugger for unhandled user mode exceptions, do the following:
WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.
Article ID: 121434 - Last Review: February 22, 2007 - Revision: 2.1