Unlockupd works around a bug in lookupd, a system service which is required for proper operation of Mac OS X. If lookupd fails, the system quickly becomes unusable. Unlockupd periodically checks lookupd's status and forces it to restart should it fail.
WARNING: Although Unlockupd has undergone a significant amount of testing with no reported problems, this software should still be considered beta-quality. It is only being made available now since the cat snuck out of the bag on the darwin-dev mailing list.
Technical Details - Lookupd is the lookup and caching daemon responsible for handling NetInfo, DNS, and other such requests.
If you have already installed Unlockupd 1.0b1, you do not need to install 1.0. The only difference is that the 1.0 download also includes documentation.
Mac OS X 10.3 or later