I am attempting to build an ASP.NET web page to interface with the client's installation of Pro/Engineer using the VB API. The application works perfectly when run locally. However, when I move it to the server, I receive the error seenbelow. We have tried registering the dll on the server, but the error still pops up when trying to start Pro/Engineer. Are there any steps we are missing in order to register the dll on the server? The server is a 32 bit machine. Thanks!