The CNC machines I used to run ran off an embedded version of xp customized by Siemens as part of their Simatic system. https://support.industry.siemens.com/cs

The CNC machines I used to run ran off an embedded version of xp customized by Siemens as part of their Simatic system. https://support.industry.siemens.com/cs/document/20059684/simatic-microbox-pc-420-now-available-with-new-windows-xp-professional-option?lc=en-me https://support.industry.siemens.com/cs/document/20059684/si... I believe the newer versions of their machines have upgraded to windows 10 however and are handled a bit differently now.