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[EKruck]

How can I apply IsWow64Process in my Fortran program?

Erwin

[PaulLaidler]

The function takes the form

[IanLambley]

Paul,
See the Microsoft article
http://msdn.microsoft.com/en-us/library/ms684139
which states:
"For compatibility with operating systems that do not support this function, call GetProcAddress to detect whether IsWow64Process is implemented in Kernel32.dll. If GetProcAddress succeeds, it is safe to call this function. Otherwise, WOW64 is not present. Note that this technique is not a reliable way to detect whether the operating system is a 64-bit version of Windows because the Kernel32.dll in current versions of 32-bit Windows also contains this function."
and give some code in a strange language thet you could no doubt translate.
Ian

[PaulLaidler]

You will need Windows XP with SP2 or a later operating system.
If you cannot guarantee this then you will need to call GetProcAddress as you say because the function may not be in the dll.