I have found that IVM ver. 4.0.3 has a memory leak. If I leave it running (it doesn't make any difference if I receive a call or not) the PC locks up.
I have run a program to show the GDI and USER memory. I can see them both going down over time while IVM is running in Win '98.
The program I am using to show GDI and USER memory live in real time is called MemSnoop32.
Thank you,
Docfxit