SawCutter 2.0 is shareware. For the first 30 runs SawCutter 2.0 is fully functional, after which it will not work properly. A user ID and registration number must be obtained after the first 30 runs. A user ID and registration number may only be used by a single user. To obtain a user ID and registration number please visit: www.cuttermusic.com/purchase.htm For more information visit: www.cuttermusic.com or write support@cuttermusic.com