Hi Jim,

if you have changed the interface of the COM server (added methods, parameters, etc) that are visible to the outside, then you must generate a new class ids in the VFP build project dialog. You also have to delete the reference from the project and newly add the COM reference. As far as VS.NET is concerned, the new version is a completely different class that happens to have methods with the same name. Therefore you have to rebuild the project. When you deploy the project make sure you deploy the COM DLL as well as the InterOp DLL that VS.NET generates. If you don't change the InterOp DLL, the .NET solution will still call the existing code.