I installed Mach3 successfilly but cant get it to recognize license.
Renamed file and pasted into main Mach3 file rebooted , still demo version.

Dont rename, keep it a Mach1Lic.dat

Hood

I copied my license.dat file to my Mach3 file. But when I check under the help screen it say I'm still in demo mode.  Any ideas?

If by " license.dat" you mean Mach1Lic.dat then it should work fine if you pasted it to your Mach3 folder.
If you still cant get it to work contact Scott at license@machsupport.com giving him the details of your licence purchase and the problem and I am sure he will get you sorted out if it is corrupt.
Hood

Thanks for the fast reply. I bought it from a 3rd party, so I think I have to contact him first. He sent me the file through an e-mail maybe I should re-copy it to my flash drive again, what do you think?

Its worth a try.
Hood

I trust that is a genuine license that you bought.

(There are a number of fakes being sold at the present time).

Tweakie.