Use the following debugger, Runs tab, Preferences Dialog Box (Error Detection)

Type the name of the debugger, select a name from the Use the following debugger list, or click images\brbut.gif to search for a debugger to use for runs of native-compiled (unmanaged) programs. For example, type msdev or windbg.

If you do not specify a debugger and you do not have Visual Studio 6 or above installed on your machine, Purify checks your system Registry for your debugger preference and launches this debugger automatically when Break on Error is set and Purify detects a warning or error, or when you select Run under debugger in the Run Program dialog box.

(C) Copyright IBM Corporation 1992, 2010.