From Soft Service:
Add affiliate tracking software to your website/shopping cart, that is one of the most effective ways to achieve more sales and more traffic! Affiliate Pro installs in just minutes and integrates easily into your existing website. Affiliate Pro could be easily integrated with any billing system. Our product has web based installation wizzard which will guide you through the process of installation. Features:
1) Pay-per-Sale (%% from sales).
2) Pay-per-Sale (flat rate).
3) Pay-per-Click (For unique visitors).
4) Payout percentages adjustable per affiliate.
5) Adjustable recurring duration (per individual sale).
6) Ability to group products and adjust setting per group.
7) Banner and text linking codes system.
8) Manage unlimited affiliates.
9) Adjustable payout amount per affiliate (%).
10) Integrated mailing system (from admin to all affiliates, approved/non-approved affiliates)
11) 1st and 2nd tier affiliate commissions (All commission adjustable by admin).
12) Built-in PayPal module for paying commissions.
13) Ability to create printable version of reports.
14) MySQL database driven.
15) All pages written in PHP.
16) Can be installed on virtual hosting account.
17) Template driven design, you can change design for your own.
18) Automated and easy installation wizzard.
19) Manage affiliate accounts.
20) Upload banners and create text ads to be used by your affiliates
21) Manage and view statistic of all sales
22) Manage payouts for affiliates
23) Adjust color settings for affiliates control area to fit your site design.
24) Ability to create several admin accounts