Custom Message Box Not Working On Windows 7

[Shohag_ifas]

Greetings every one.
i am using custom message box (by using some api calls to modify the standard windows message box) to change message box icon and button text. It is working fine on windows xp. But on windows 7 custom image position is not correct/right. It's get overlapped (get under text) with text.

please check the attached file (source + error shot)

if any one can help, that would be great

thanks in advance

best regards