I would like to create an ActiveX control inside another ActiveX control

I have an ActiveX control that works fine but as soon as I add a Custom 
control (any custom control) inside VC++ 6.0 I get Access Violation error;

I have a ActiveX control which instantiates another dialogbox this by
itself 
works fine but on this dialog if add any custom control or any OCX it send

itself a destroy message or there is an access violation, seems like the 
order of creation has changed or something, what should I do to fix this 
seemingly simple problem

Thanks in Advance
Ravi



Seems like a simple task but I cannot find an answer.