Registering OCX

I am using an ocx to display some name when try i to register it it will say Dllregistration succeeded.But when i open my workspace it will say ACtiveX Control cannot be instantiated.What could be the problem?Please can anybody help me.

Thanks in advance.

Does the .ocx use a license file? If so, you need access to it during design time.

http://forums.codeguru.com/images/ie.../2004/04/2.gif
I have never meet this case
I think you try to use this OCX in VisualBasic(6.0) then retry with VC++