Using the mouse wheel in another application while Visual C++ 6.0 is running can cause it to crash. It always happens after some time and it already happened to me three times this morning.
There is two error reports:
MSDEV.EXE - Application Error The instruction at "0x1ee8ef78" referenced memory at "0x00000015". The memory could not be "written".
DevStudio Macro Terminator: MSDEV.EXE - Application Error The instruction at "0x1ee8e9f5" referenced memory at "0x00000001". The memory could not be "written".