I have a project set up. When I run the project it works fine. I have no problem building the exe, but when trying to run the exe I get the message "Class name is invalid" and it won't run. I have removed all the forms, the menu and the reports and commented out everything in the program file except a message on the screen, so I'm thinking it has to be in the class itself, but I created a completely new class and project and still got the message. I even put everything in a new, clean directory. I thought I had all the hard work done. As far as I know nothing has changed on my setup. I just rebuilt another department's exe on the same server with no problems at all. Is there anything else I can look for? It's very frustrating, especially since even if I started from scratch and redid a month's work I'm not sure it would work.