It seems to work fine when the User Control is in the root directory of the web project.

If you have a tendency to put user controls into their own sub folder (like most dev's do), you have no way to access a reference to the control or the type.

I came across this via Google, but I'm not totally sold on the idea.

http://west-wind.com/weblog/posts/3016.aspx 

Regards,
Frank