The OXF libraries provided with the MultiWin32 environment
do not include debug information. To step through the OXF source code
using MULTI, you must rebuild the OXF with debug information enabled.
Perform the following steps:
Procedure
Add the following line to the $OMROOT\LangCpp\MultiWin32Build.bld file
just below the ":defines=OM_STL" line: