what does this mean

I have windows 2000 installed and keep seeing that everytime I boot the following error is added to the application log.
Event Type: Error
Event Source: perfctrs
Event Category: None
Event ID: 3101
Date: 08/08/2000
Time: 01:06:28
User: N/A
Computer: SONIC
Description:
Unable to read IO control information from NBT device.

i would just like to know what it means. It doesnt worry me, just curiuos
thanks

Found the cause....

The Windows 2000 TCP/IP performance counters (Perfctrs.dll) are attempting to extract I/O control information from a network device, but no network device (network adapter, modem, and so on) is present in the system.

This problem can also occur when the performance counters attempt to extract I/O control information, but the network stack has not completed loading. This is a timing issue and does not necessarily indicate a problem.

See here in tips for solutions..... http://win2000tips.home.att.net/
Chris