PRPC automatically saves the results of certain list view reports and other searches that users execute. These form a cache of recent search results available for redisplay and reuse, if the same list is needed later. This collection is known as the lookup list cache or LLC.
Although it is rarely necessary in ordinary system operation, you can cause your system to clear the lookup list cache at startup by deleting the extract marker file, or at any time using the System Management application.
In releases before 6.2 SP2, the lookup list cache was a collection of XML files in a directory named LLC. Beginning with 6.2 SP2, lookup lists are saved using the lightweight list facility.