QMfcApp::pluginInstance hangs when inside DLLMain

Using QtWinMigrate with a Qt DLL called from an MFC app becomes impossible with this code snippet of the DllMain function:

http://doc.qt.nokia.com/solutions/4/qtwinmigrate/winmigrate-qt-dll-example.html

The reason is because inside the new 4.6.3 "QMfcApp::pluginInstance" a new "QApplication" object it´s created in the heap, when initializing the new QApplication multitouch feature one of the functions (I think that it´s QApplication::initializeMultitouch) end calling the win API function CoCreateInstance, which freezes the application because:

http://support.microsoft.com/kb/305723

Reverting to Qt 4.5 solved the problem.

Regards.
Rafa.