Check whether file is in Windows installation drive and whether drive is connected

Question

Is there a way to check if the my process can check whether its directory is on the Windows installation drive? For example, my file is on the D: drive but Windows is on the C: drive.

I want this because the file should be launched from an external drive.

With this can you also check whether the drive currently exists? Again an example, the file is on a USB in D:, can you check if the D drive still exists while the program is running? Like whether the USB in unplugged while running?

Answer 1

Split up the problem into the individual components:

• Find the executable's path: C++ Windows - How to get process path from its PID
• Get Windows' own installation path: Find windows folder programatically in c#, if you can port this to C++
• Check that the former is not in the latter
• Use a function like access() to check whether the executable's path is still accessible.