File Blocking Error

Hello, I hope someone can please help me with this! I noticed that in my Event View/Application area on my Windows 2K Advanced Server there is an Error 2042. File Blocking Error. I have searched just about everywhere and find no reference at all to it. In the field where there is usually information regarding a fix it says Catch Error. It happens approximately every minute, then skips 5 minutes and starts again every minute. Nothing has changed on my server. No software installs/removes. Nothing. Please Help! tjordon@abi.org Thanx!