PeerLock 3.0 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This software is an intellectual property of Peer Software, Inc. We recommend checking the downloaded files with any free antivirus. The most popular version among PeerLock users is 3.0. The most frequent installation filename for the program is: PeerLock.exe. PeerLock relates to Internet & Network Tools.
From the developer:
PeerLock Server offers network file locking while local files are in use and integrates seamlessly with PeerSync Server and PeerSync High Volume Server. This innovative program ensures that when a user is modifying a file, no other user will be allowed to make changes to that file on any machine that the user has chosen to lock.
You may want to check out more software, such as WMS Client for Arcview Beta, Usage Agent or SigX, which might be related to PeerLock.