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For development related questions, please discuss in our MSDN forum. Dev Center - Desktop > Windows Desktop Development Forums http://social.msdn.microsoft.com/Forums/en-US/category/windowsdesktopdevPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

I seem to be getting an intermittent error in some old code when running on Windows7. The function calls CopyFile() then Accesses the new copy of the file. Windows 7 seems to sometimes NOT copy the file but I don't get an error from the CopyFile() function. Is this a known issue? I am unable to recreate this on demand.

This is not an easy task to catch the phenomenon that does occur regularly. I would use Process Monitor from Sysinternals to pinpoint the issue. Regards Milos