>Have an Application which calls Win32 API functions and may need to run on Windows 7 64 Bit (Some new computers will only ship with the 64 bit version)..
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>Have there been changes to the Win32 API on Windows 7 64 Bit and is there a place where these are listed in Foxpro code.

Your application will still be running in 32-bit mode. Which API calls specifically are you concern about?