Unable to load Plugin ‘WebGuard’ Error after Updating Windows 7

Here is some important info about my PC:
Versión de producto 10.2.0.95 31/08/2011
Motor de análisis 8.02.06.108 07/11/2011
Fichero de firmas de virus 7.11.17.108 09/11/2011
Centro de Control 10.00.12.31 09/11/2011
Centro de configuración 10.00.13.20 09/11/2011
Luke Filewalker 10.03.00.07 09/11/2011
AntiVir Guard 10.00.01.59 09/11/2011
Filtro 10.00.26.09 09/11/2011
AntiVir WebGuard 12.01.06.17 11/10/2011
Programador 10.00.00.21 09/11/2011
Updater 10.00.00.39 09/11/2011
As you might notice, I had a major update to Windows 7 Ultimate 64-bit. The Avira AntiVir Personal error dialog below appears every time I turn on my PC or run Avira. It’s “Unable to load plugin ‘WebGuard’.” The name itself, WebGuard, sounds like it is a very important part of my anti-virus. What do you guys think?
Are my other programs affected by my Windows update?
Avira AntiVir Personal – Free Antivirus
Unable to Load plugin WebGuard.
Error:
Load plugin failed.
OK
