error while running qt project

[stampede]

i pasted those files in the directory containing cc1plus.exe

Is this cc1plus.exe your program executable ? To me it sounds more like a part of MinGW.
You have to paste the dlls into the folder where you keep your project .exe file.

[komal1991]

even after copying all the dll files to the folder where my project executable is placed, m not able to run it without error. Same error is occurring again and again. Plz help me

[Spitfire]

Run the Dependency Walker mentioned above, it will tell you what you're missing.