Tried that (made a VS project tile from qmake). Still having the same issues.

Did a little bit of poking around - basically turns out that these two #defines:

QT3_SPPORT_CONSTRUCTOR
QT3_SUPPORT_VARIABLE

are not defined when several header files (qiodevice.h, qvariant.h, qregexp.h, qcolor.h, qpallette.h) are included by my code.

Not sure why. My project file has qt3support enabled and again, project compiles perfectly under Linux.

thanks,

-philski