I just updated my machine to Windows 7
Installed Qt 4.6 and the latest VS addin
Have VS 2005 and all the windows updates installed

Was previously using Qt 4.5.3 and the VS Integration (not addin)

With the addin, when I add a Q_OBJECT declaration to an existing class, it does not add the entries to the project so that moc files get compiled and linked in. Same if I add an existing file to a project (with a qt class in it).

This worked fine with the VS integration.
The VS Addin also works fine on newly created projects.
VS Integration 1.4.1 also works fine with our project and qt4.6

I tried explicitly converting the project to a Qt Addin project but get the error attached
Also attached the project file, obviously you can't open it because of all the missing dependencies, but maybe you can spot something in the xml