Hi wirasto,
But, in windows 7 machine qt framework is not installed in that i want to deploy exe.
Qt lib i have not included where my exe is there only qtcore.dll, qtgui.dll, qtnetwork.dll, qtwidgets.dll and my exe is there.

But, when I execute exe it crashes.
Do i need to include any qt lib file in same exe path?? Which qt lib path do i need to include?