I am trying to make the QWT designer plugin part of my Visual Studio environment.
I successfully built a release build of the qwt designer.
I copied all of the qwt_designer_plugin.* files to my
C:\Qt\4.2.1\plugins\designer directory.

Now when I load my project and open a .ui file I still see only the standard
QT Toolbox.

In addition, now when I close my Visual Studio project I get a "Microsoft Visual Studio
has encountered a problem and needs to close" popup. I only see this if I do something
that invokes the designer.

Running QT designer in standalone mode fails to show the QWT plug in as well.


Any suggestions?

Commercial QT 4.2.1 on Windows XP.