Hello everyone,
I have Mach3 demo on a pc with windows 7. I bought the license, but when doing the install,  the demo program will not recognize the new license. I am running the pc as the administrator. The license dat file does the install thing but my program stays in demo mode.
Any help would be appreciated.
Thanks

Try
Closing Mach3. Then manually copy your license file Mach1Lic.dat into C:\mach3.
Now restart Mach3.

Been playing for the last hour. Did what you suggested and other things. Now it does accept the license and shows it on title bar. Thanks

good to know
Enjoy