I set the ProgID attribute and also set [ComVisible(true)] attribute.

In VS2005, there are some notes in assemblyinfo.cs about this attribute being set to off at the assembly level (so you may need to enable at your class level).


>Hi Kevin:
>
>In the aAppTest I have:
>
>

>            mmAppBase.Factory = new AAppTestFactory();
>            mmAppBase.IsRunning = true;
>

>
>To follow your suggestion I tried to reference AAppTestFactory in my CREATEOBJECT VFP call but it could not find that symbol. Should I add a ProgID attribute so it is visible to COM?
>
>Thanks,
>Mike G.