stuff to do on DLL_PROCESS_ATTACH

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it is guaranteed you can call any Kernel32.dll function on the DLL_PROCESS_ATTACH.
Calling any other function from other library is not ok, as the DLLs may not be loaded at that time (although your code links with those libs).
more info can be found in the J. Richter book. and J.Robbins say some problem he had in the past with some thread work in DLL_PROCESS_ATTACH.

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