Distributed Link Tracking Client
Windows Vista Service Details
The Distributed Link Tracking Client maintains links across network. It keeps track of files' locations even if the file has been moved. Seems like a lot of overhead if you move stuff around, and safe to disable.
Maintains links between NTFS files within a computer or across computers in a network domain.
Consequences of Stopping:
All services listed in 'Required For' will be unable to function