Due to Version 1.0 only blocking TCP ports Peer then shifted to uk where Protowall, The blocklist Manager, B. Version 2 enabled support for more protocols (TCP, UDP, ICMP, etc.), multiple block lists, and automatic updates.The installation procedure was also simplified, no longer requiring a system restart and driver installation.
The program allows for a user to turn on and off both IP and HTTP trackers as well as including a log showing the time, source, IP address, destination, and protocol of the tracker.
A list of settings allows users to both customize their program's interface as well as its operations.
Until September 2013, I-Blocklist, the supplier of the blocking lists Peer Block uses, supported unlimited free list updating.
Since September 2013 updates were limited to once weekly, except to paid subscribers.
With the blocklist manager application, users can add these sites to a "Safe list" allowing them to continue using the Games and websites without interference from Peer Guardian.