Quicktime vs. zLib on Windows7

Hi everybody,

I included libxml2 in an external to parse xml-files. On MAC all is fine, like always.
If I start the external in combination with jit.qt.movie object (first qt, then the parser) I get
'The procedure entry point gzdirect could not be located in the dynamic link library zlib.dll'
libxml2 is using another library called zlib1.dll - and there is the error coming from.
If I start the parser first and then qt, I don't have problems. But this sequence is not adaptable for my program, unfortunatly.
Here are posts I found related to this subject:
http://bugreports.qt.nokia.com/browse/QTBUG-15071
http://lists.trolltech.com/qt-interest/2007-07/thread00942-0.html

I know that this is not a Max-Issue, but perhaps somebody knows how to play a trick on the Windows Qt-Installation to avoid the access of the zlib1.dll?
Or some suggestions about the loading sequence?

The qt-Version is the newest, also the libxml2/zlib-build.

Thanks in advance!

Best Regards,
Johannes