Many shops still run older CNC machines that pair perfectly with the post-processors developed during the X5 era. The Question of "Free" Mastercam If you are looking for a "free" version of Mastercam X5
: Windows XP, Windows Vista (Business/Ultimate), or Windows 7 (Professional/Ultimate). mastercam x5 v140433 free
If you have a legal license, you can still install X5 from original media (DVD or downloaded backup). However, CNC Software no longer provides activation servers for X5; you must use an offline NetHASP or SIM dongle. Many shops still run older CNC machines that
: The system requirements for Mastercam X5 include Windows XP or Windows 7 operating systems, which are outdated and no longer supported by Microsoft or CNC Software, Inc. Windows Vista (Business/Ultimate)