ComTrace 1.31 that could have been downloaded from our website for free. This free software was originally produced by Blunck Software. BSTraceViewer.exe, comspy.exe or ComTrace.exe are the common file names to indicate the ComTrace installer. The program lies within Development Tools, more precisely IDE. The most popular versions among ComTrace users are 1.3 and 1.0.
From the developer:
You will see the name of the method call, the parameters passed to the method and the returning HRESULT. ComTrace is a tool that will intercept both calls made on your interfaces and calls made to the COM library, and trace these for you. In order to trace calls on any interface, ComTrace needs to know the signature of the interface.
You may want to check out more software, such as GnuWin32: LibIconv, Greatis Form Designer.Net or FrameDemo2, which might be similar to ComTrace.