>Hi,
> I am trying to create an ActiveX control that contains another ActiveX Control - MSCOMM32.OCX. I would like to know, after I compile my user defined ActiveX, do i need to include MSCOMM32.OCX again for any application distribution?

Yes. And there is more to it. All applications/components built with VB needs VB run-times (MSVBVM60.DLL and others). The simplest way to know what you have to distribute, is to use the Package & Deployment Wizard to build a setup kit for your component.