Avast is hanging XP's shutdown

[evilknight]

One thing I did notice is that when I check the: (about Avast)
I notice the product says: server.
I thought I was to chose workstation.
or does Avast make this a default and no problem is here?

[evilknight]

Ok guys
I just upgraded to the latest Avast
4.5.523  I think
now it is shutting down after a 1 minute 10 second wait.
10 seconds slower.
a little worse, and still way to slow.

[Peetah]

It's still occurring, even after trying different shutdown scenarios.  The only sure method of making my system shutdown is to shutdown on-access protection, or shut off the service.  Neither of which is acceptable.

It was working in versions prior to 4.5.518.  So something has changed between now and then, and it's not my system (except for avast upgrading itself).