Good news. In trying to solve an issue with a non functioning avast! Outlook Spam plugin for EPSP 1456.
1) I removed all avast! plug-in's in Outlook
2) I uninstalled EPSP and rebooted
3) I used the "avast! clean tool" and rebooted
http://www.rejzor.tk/2012/08/19/avast-cleanup-tool-1-0-released4) I then did a Pete scrape, and no "avast" and "Alwil" directories
5) Nothing in C:\Windows\temp
6) "Start, run, type "%temp%" and remove all" **** found an empty avast! directory here ****
7) I searched all hard disks for instances of "avast" and "Alwil" and found none
Found ZERO references to "avast" and "Alwil" in the registry
This tool worked perfectly on a default directory install of EPSP onj Windows 7 Pro x64. Next, Pete and I will try it on XP!
Rejzor, You are the MAN!