TreePad is free to try for 21 days, during which the program is fully functional. Beyond this time limit, you need to register it in order to use it.
1. The installation of a fresh version of TreePad over a previously installed evaluation version does not prolong the original 21-day evaluation period.
2. Your system clock should not be adjusted during the 21-day evaluation period. Setting your system clock backwards or forwards may shorten or even terminate the 21-day evaluation period! Should this occur, the program can only be reactivated by registration. Once registered, all system clock restrictions are lifted.