Hobbyware Pattern Maker Cross Stitch Software, Professional Version Supports up to 150 colors per pattern Unique Cross-Stitch designs Compatible with Windows Downloaded version must be run with Admin privileges for Windows NT/2000/Xp. The downloaded version is NOT compatible with Windows Vista/7/8. The CD ROM release IS compatible with Windows Vista/7/8 For best results under Windows Vista/Windows 7, after installation right-click the Pattern Maker short-cut icon, select Properties, the Compatibility tab, Run this program in compability mode for, and then choose Windows XP