Hi,
I’ve been using Avast! for a very long time on XP and never had any troubles what so ever, well, that was till Vista came to the party 
I’ve been using Vista for the past 2 weeks now, like it a lot by the way, except for this problem I have.
In the time I’ve been using Vista explorer froze dead stiff whenever opening folders or copying files, forcing me to do a hard reboot. However I’ve noticed that every time explorer froze, there was a Avast! related error logged in my Event Viewer.
Log Name: Antivirus
Source: avast!
Date: 2/05/2007 3:22:18 PM
Event ID: 90
Task Category: Client
Level: Error
Keywords: Classic
User: N/A
Computer:
Description:
AAVM - scanning error: DriverScanListenThread: FilterReplyMessage, FAILED, 801F0020.
Event Xml:
90
2
4
0x80000000000000
18
Antivirus
AAVM - scanning error: DriverScanListenThread: FilterReplyMessage, FAILED, 801F0020.
Can someone please steer me in the right direction on how to fix this, or please let me know if this actually has nothing to do with Avast! at all.
Thank Loads.
–Sauron