I have a VB application I'm trying to deploy, however, on some PCs I'm getting a run-time error 429. In this application I have some class modules I've created (not saved as DLL but as CLS). Could these modules be causing the error and why on some PCs and not others? How can I correct this problem? This application will run until I open a form that sets my classes and sets an ADO connection. Normally if there is a problem with the ADO I have an error message that says "Connection can't be made.". On the PCs that give me 429 I don't even get the form. The form makes the connection and set the objects on load. Please, Please help I'm at my wits end.