All of our Shipping Software solutions are easily implemented, fully compatible with your current systems, and easy to use.
Take advantage of easy updates in the fast-changing postal world, without worry.
Shipping Software for Domestic and International Shippers of all Sizes
Postal Package Partner™Shippers of all Sizes use Postal Package Partner™ (PPP) to automate shipping and save BIG with low Postal Rates on Domestic and International shipments. Stealth Postage turns your shipping into a Profit Center by hiding the postage amount with PPP's Postal Manifesting. ZIP + 4 Address Check ensures that your packages are delivered the first time, and customized e-mail notification drives repeat business. Learn More
Window Book is pleased to partner with the U.S. Postal Service.

FREE Electronic Delivery Confirmation™ on Priority Mail®
Discounted Electronic Delivery Confirmation and Signature Confirmation™ on:
- Express Mail®
- First-Class Mail®
- Parcel Post®
- Media Mail®
- Bound Printed Matter
- Library Mail
Plus, get Saturday delivery and delivery to P.O. Boxes, APO/FPO addresses, and U.S. Territories at no extra cost!
Our Postal Package Partner software is certified by USPS® for both MAC Gold and MAC use.
USPS Open and Distribute service 
Did you know that Postal Package Partner’s Open and Distribute Module supports Open and Distribute with a Service barcode? Learn More
USPS Applications Form FillerGet started quickly and easily with the U.S. Postal Service and benefit from great Postal rates—use our FREE Online USPS Applications Form Filler and qualify for Postal programs such as Electronic Delivery Confirmation, Manifesting, Express Mail and more. Learn More