Hi Brian. thanks for responding.

I called the Messaging Infrastructure people and found out that we have an
enablepst.reg file and i ran that under my admin account, logged in client
under his account and than backed up the client's old calendar entries to a
shared network drive and deleted it from the old. I then had to run
disablepst.reg to disable .pst files. I guess the reason we don't have .pst
files is because they took up too much space on network resources so my
organization went to the enterprise vault system.
None of colleagues knew of, or helped, with standard windows stuff. I
personally have never had a need to use the calendar at all. I think the
difficulty was just changing the calendar to different views so i could
delete easily. But now i know.

Thank you