I downloaded Qt SDK for my windowsXP. At first, everything was ok, qt designer.exe, assistant.exe, ect. runs perfectly. However, after a while looking around and do somethings with Qt, a strange problem appeared and every executable file in Qt/qt/bin, including designer.exe, assistant.exe, ect. cannot run. The same error message always occurs:
" ... - Entry Point Not Found
The procedure entry point ... could not be located in the dynamic link library QtCore4.dll"
QtCore4.dll is still there, I didn't delete anything in that folder. I cannot understand why.
I tried copying the executable files to Qt/bin but nothing different.
Please help me, thank you very much in advance.