shut down problem after sp2

After successfully loading sp2, the only problem I have encountered is a
slow shut down on xp home. It takes almost two minutes every I shut down. In
event viewer under application, event ID 1517 shows on each shut down or log
off. I followed Kelly's advice and installed uphclean which actually caused
the two minute shut down. Prior to it's installation, I received the event
1517 always, but shut down time was normal( about 10 seconds). After I
installed uphclean, the event 1517 was removed, but it now took two ninutes
to shut down. I have now uninstalled uphclean, and the event: id 1517 has
returned and it now still takes two minutes to shut down.It appears uphclean
had extended the shut down tome somehow.Because this utility addresses the
xp registry user profile retention error: ID (1517), I booted to the welcome
screen only and did not load any of the four user profiles I have, then I
shut down from there and it still took about two minutes to shut down. Is
there anything I can do to try to trace what program or service is holding
the registry, or is this not the only problem and something else from the
sp2 upgrade, or uphclean is causing the problem? Any help appreciated.This
is the only problem I am experiencing with sp2.