Feel free to try MSS on a system we had not tested, and let report us by creating an issue.

GNU/Linux, macOS and Windows: 2.7, 3.5, 3.6 and 3.7.

• Support ReactOS and other systems on OS stability or available hardware.
• Any idea?

Tested successfully on Pypy 5.1.0 on Windows, but speed is terrible.

• Python 2.6 (2016-10-08)
• Python 3.0 (2016-10-08)
• Python 3.1 (2016-10-08)
• Python 3.2 (2016-10-08)
• Python 3.3 (2017-12-05)
• Python 3.4 (2018-03-19)

By the way, if you find the force, give it a try and tell us if you managed to make one of these versions working (a patch should be quite easy).