I have installed winxp 64 with .NET framework 2.0,3.0,1.1 and VS 2005+sp1+hotfix(qhash) and Qt 4.3.3 .
Everthing is running well. But if a install the serviepack fro .NET framework am not able to start VS 2005.
The splashscreen is shown for a few seconds and than nothing is happen.
Maybe this is not a problem Qt.
But now i have setup a new computer. I have installed winxp 64 with all servicepacks and updates(including .NET framework 2.0,3.0+servicepacks).
VS2005 (+sp1, without hotfix) is running well. But i am not able to install the qt vs integration. Some dlls are not able to be registered.
I am also not able to compile Qt 4.3.3. I have started the compilation several times and it stops at different points.

Could it be that Qt 4.3.3 is incompatible with .Net framework 2.0 servicepack?