Hello. Perhaps my issue is the same. I installed
antispyware today 1/9/05 as user1 under Win XP Home, and
it will not run or install or anything under the user2 on
same computer. "Unexpected error; quitting" dialog comes
up twice when user2 clicks the shortcut followed by
critical Error 101 dialog. Antispyware continues to work
great when user1 is logged in and active.