PeerBlock 1.1 arrives with some important updates
Among the key additions are a completely revamped installer (complete with a signed driver), an updated list manager for easier settings tweaks, and a list verification feature to prevent file corruption. The signed driver is an important addition, since it makes the installation process much easier for users of 64-bit Windows. PeerBlock has also switched from the PeerGuardian blocklists to iBlocklist.com, which the developers say are much faster and more reliable. There's also an option to display allowed connections -- though you should expect an additional hit on your CPU if you switch it on.
Download PeerBlock 1.1