Domino server crashes every five minutes

We have a Domino R6.02CF1 server on a Win2000 Pro (SP4) that keeps crashing with a NSD message every three to five minutes. Any help will be highly appreciated.
If you are crashing that often, you need to contact Lotus support immediately. Check the log to see if anything jumps out at you, but the NSD needs to be annotated by support.

This was first published in September 2003