I have been hacking at this for two days. I could use a little help here. I am rewriting a console application that uses a com object named transaut.tlb. This object exposes cognos transformer functionality. I used tlbimp.exe and imported it. When I make reference to this dll and use it in my code, the code compiles but I get the runtime error "CLSID{blah ,blah...} failed due to the following error: 80040154". I tried making a reference to the orginal com object transaut.tlb I tried registering the ......