Temporary Environment Variables Between Macros

[Davider]

Thanks for your help.
The /exe tag at the beginning of the code worked and seems to have resolved the issue I mentioned earlier.

Would it be very complicated if we avoid using the /exe tag (which generates a file) and instead use the method mentioned below? 

For example you can create a class that restores the initial variable value in destructor.

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Using the following WinAPI function, it seems the initial value can always be retrieved.

Code:

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out getenv("PATH")