Hi Wysota,
After reading your last post i uninstall QT totally & reinstalled QT4.4.1 on My PC.then i tried to compile wwWidgets, but again i got same problem.

one more thing i observed while compiling my application is my code is compiling twice every time. when i was working with QT4.1 earlier, after building of my application,if i run .exe file it should open directly.Now i am working with Qt4.4.1,after building of my application,if i run .exe file,it is asking for mingw10.dll,Qtcore4.dll and QtGui4.dll.after coping all the dlls to release directory then only the exe is opens.

what is the problem?please give me any hint.

Thanks in advance