XV IS SHAREWARE FOR PERSONAL USE ONLY.
You may use XV for your own amusement, and if you find it nifty, useful, generally cool, or of some value to you, your registration fee would be greatly appreciated.
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COMMERCIAL, GOVERNMENT, AND INSTITUTIONAL USERS MUST REGISTER THEIR COPIES OF XV.
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(Note: If you are a student, and you use XV to do classwork or research, you should get your professor/teacher/advisor to purchase an appropriate number of copies.)