WinProof End user license agreement

Non-registered users are granted a limited license to use
WinProof for 7 days on a private non-commercial basis,
for the express purpose of determining whether WinProof is
suitable for your needs. At the end of the 7 day
period, you must either register your copy of WinProof or
discontinue using WinProof. Using WinProof beyond the
trial period is in violation of United States
copyright law. The cost of registration is currently $40.
Prices are subject to change.