Problem with CoCreateInstance

[Raj Prathap]

Hi, I'm facing a problem with the COM Dll that is also written by us. I have a COM Dll, which uses another two dlls. And for UI I have another application which uses the COM Dll(The application is a Win32 application without MFC Support). When the COM Dll is built in the release mode, CoCreateInstance method causes the message box "User breakpoint called" to be popped up. In fact the CoCreateInstance does so many other things like initializing the communication, initializing the drive..etc. When the Dll is built in the release mode, it causes no problem. The problem I've identified is in the statement where delete was being called. The interesting fact is that the problem does not araises with the applications with MFC Support. My one perticular application is without MFC Support. The COM Dll is built with Static MFC support. Another thing is that, to make tha applicaion up the COM Dll should be built with the Shared MFC Dll support. But when I make COM Dll with shared MFC, other applications(those were built with MFC support earlier) does not work. I'm confused how the MFC support for the COM Dll affect the behaviur of the applications. Please provede me with a solution. Thanks and regards, Raja Pratap Reddy