I defined the MULTITHREAD symbol and compiled both DLLs with VC++, v6. I put the DLLs in this zip file. Please consider these DLLs to be for testing only. We should validate them more before anyone sends them out to end users. I'd like to have some other users test these in a more conventional program, also. http://www.am004a9659.pwp.blueyonder.co.uk/delzip/ThreadDLL.zip REMEMBER: These DLLs are just for testing! Eric