Ok but the situation with this client is pretty complicated. There's another company who wrote a VB dll to use the mswinsck.ocx (which is a standard windows ocx supplied on every windows version). So in this situation i'm using a legitimit, at least i think so, version because 1ste it's installed by windows as part of their OS and 2de the company that wrote the call-center application replaced it with their version (which was i a compiled VB enviroment). Unless there's something wrong with my way of thinking i can't see any reason why i can't this OCX in my application to make a call to the call-center software to dial a telephonenumber for me.

Guillaume