For Mach4, the unlicensed DEMO mode will run with all features active, but is
run time limited to somewhere around 5 minutes before requiring a shutdown
and restart. As such it is fully capable to testing with a real hardware motion
controller during the demo time or for unlimited time with the simulator..
If you have a registered license, you can go the with Machsupport.com web
site and log in to use the License Maintenance button to issue additional
licenses to yourself for up to a total of 5 computers for hobby use. These
are fully functional licenses, but you do need to supply the PCID for each
computer in order to generate the license. Simply loading the existing
license onto a new computer does not work.