Net Folders are notoriously troublesome and have been put out of their
misery in later versions of Outlook. See if any of the suggestions in this
article help.
Description of troubleshooting Net Folders errors in Outlook 2000
http://support.microsoft.com/default.aspx?scid=kb;en-us;229962&Product=out2K

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Milly Staples [MVP - Outlook]
Post all replies to the group to keep the discussion intact. Due to
the (insert latest virus name here) virus, all mail sent to my personal
account will be deleted without reading.

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After searching google.groups.com and finding no answer, Wayne asked:
| Once I have shared the outlook calendar with other members of the
| office it sends hundreds of e-mail updates for the calendar to others
| even though I have not made any updates.
Wayne, did you ever get it to stop? Please let me know as I am having the
same problem. My email is jball.bm@tsatnet.com
> Once I have shared the outlook calendar with other members of the office it
> sends hundreds of e-mail updates for the calendar to others even though I
> have not made any updates.