App fails in Windows 7 Pro but works great under XP and Vista.

Using Win 7 Pro. Same goes with card nVidia GeForce, ATI Radeon, nVidia Quadro FX 3500, 3700 graphics card, 4500, Matrox Xenia, real Vision GDS cards.

All of these cards work in Win XP and Win Vista.

Using an application that works in Win XP and Win Vista but fails in Windows 7. Run the application in compatibility to Win XP SP3 and with Desktop Composition disabled mode. Using the same video card driver in Win Vista and Win 7. Problem is that Windows 7 does not seem to send the right messages to the second screen of a system of two display.

Since the problem is with an application, you or your company developed, I suggest that you post your question in the MSDN forums.

They would be better able to deal with what might be causing your application to fail.
It is the main link to the forums. Depending on the language that your application was developed, please post in the most likely category.
http://social.msdn.Microsoft.com/forums/en-us/categories/

Sincerely,

Marilyn

Tags: Windows

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