PPPop is Shareware. It is fully functional as distributed, but it does put up a shareware notice. When you register, you will receive a password to disable this shareware notice.
Why pay? If you use the program and you like it, think of it as a tip for good service.
Prices:
Single-user license: US$20
Covers use by one person on one computer at a time. You do not need a separate registration for each computer you own.
Single-user upgrade: US$10
Upgrade from any previously registered version of PPPop to PPPop2.
Site license: US$99
Covers all users at your site (building - computer lab, university, or small company).
World-wide license: US$2000
Covers all users within your organization on the entire planet and in near Earth orbit.
ISP license: by arrangement
Non-exclusive license for an ISP to distribute unlimited copies of PPPop with their internet connection kit. Includes removal of shareware notices and minor customization, e.g. with company colors.
You may distribute this program intact and unmodified along with the Register application and full documentation, but you may not charge for this program!
How to register
The easiest way to register is to Register PPPop Online via Kagi Shareware: <http://order.kagi.com/?RF>.
Near the top of the registration page is a link to Kagi's secure web page. Use that if your browser is capable of secure transactions.
or
If you prefer to deal direct, you can mail US$ in cash or check directly to the author:
Rob Friefeld
4607 Colorado Street
Long Beach, CA 90814
U.S.A.
or
Use "Register PPPop", the registration application distributed with PPPop. It will present you with a simple screen to produce a registration form for you. You can email, fax, or postal-mail the form to Kagi Shareware, my collection agent.
If you don't have "Register PPPop", then you have an incomplete distribution archive of PPPop. Other things may be missing as well. In that case I recommend that you download the full current version via the PPPop Web Page: <http://home1.gte.net/frie/>.