exited with code -1073741511 error in runnig application from Qt-creator

Yesterday my application was running fine. Today I dont know what happened it's building fine, when running it's giving the error not running the application
[code]
Starting C:\Documents and Settings\sdh\My Documents\STUREC_DATABASE\STUREC\debug\STUREC.exe. ..
The program has unexpectedly finished.
C:\Documents and Settings\sdh\My Documents\STUREC_DATABASE\STUREC\debug\STUREC.exe exited with code -1073741511
[code]

I can see the exe file is being generated in the debug folder. from Qt-creator it's not launching. Please help.

1) Maybe application can't find some *.dll files? Put this files in folder with your application.
2) Try add in *.pro file "CONFIG += debug" and rebuild with debug mode.
3) Try rebuild with release mode.
4) Delete Makefile, Build->Clean All, Build->Rebuild.

i have done it's still not launching the application from creator.
Starting C:\Documents and Settings\sdh\My Documents\STUREC_DATABASE\STUREC\debug\STUREC.exe. ..
The program has unexpectedly finished.
C:\Documents and Settings\sdh\My Documents\STUREC_DATABASE\STUREC\debug\STUREC.exe exited with code -1073741511

http://stackoverflow.com/questions/8...tedly-finished

problem sorted out. it was Qt dll problem. Now removed the linking from the pro file so it's working fine. Thanks Sujan