Recompiling ActiveX dll each time ActiveX exe gets recompiled

Hello,

I have got a very irritating thing. I have made an ActiveX exe and an ActiveX dll. This works fine.
But each time I recompile the ActiveX exe and I try to load the ActiveX dll it gives a type mismatch, this is very annoying.
I have got the binary compatibility on by both the exe as dll.
Has any one got an idea how to change this. Cause the plugin will be created by others and each time I change the ActiveX exe they have to release a new version of their Dll isn;t quite nice. So has anyone got an idea?