Linux will not work. Windows 10 might work but you'd have to try. Netos 6.3 is 15 years old. If possible upgrade to Netos 7.5. Netos 7.5 officialy does not suport x64 Windows, however, in reality it works fine with x64 windows 10 Pro. I suspect that it will also work with netos 6.3,especialy if you are not interested in JTAG debugging and only compiling. If this failes you can always install Virtual machine with XP on top of Windows 10