PeerBlock

I-Blocklist is proud to announce its support of PeerBlock.
A team lead by Mark Bulas has forked PeerGuardian2 under the name PeerBlock and in recent months made great progress towards a stable IP blocking software.
PeerBlock solves many of the problems that have plagued PeerGuardian2, especially on Vista and Windows 7.
We encourage you to find out more at http://peerblock.com