On the web page I see a rectangle where the control should be. I am figuring
it is a security issue because I get the same rectangle in the equivalent c#
user control if I override the wndproc method (this I understand is an
security issue).

The control does not call any unmanaged code, nor have a linked in any other
libraries that aren't included by default.

I also have not configured any security policies on my local machine. I am
assuming then the control is running in the context of the AppDomain that ie
creates for the control. (I'm not 100% sure of this point)  However, like I
said, an equivalent c# user control loads fine.

I should add that I am trying to load the control from the intranet.

All this brings up an issue for me anyway.  In the end my c++ control will
end up calling unmanaged code. I need to use DirectShow to display some
video streams and WMP will not suffice.

What would be the best way to deploy this control that is simplest for the
end user ( certificates, policies )? I'm not sure if this is in your
department or not. I know its not in mine!

George Economos