VanguardLH wrote:
 
> Avast, free or paid, as well as many other security softwares, will
> expire after awhile, like a year.  You get to use the free version
> or subscribe to a version for a year.  After that, the product
> expires. They want to make money on the subscription model.  They
> don't want to support old versions in the free model. 
> 
> Avast and many other security softwares may not support the long
> dead Windows 2000.  Mainstream support died back in 2005. 
> Extended support died back in 2010. 

Norton Antivirus 2002 can still be updated by periodically downloading
the Symantec Intelligent Updater package.

This updates the virus definitions and scan engine dll's.

The Intelligent Updater package will update NAV 2002 as long as NAV is
within it's 1-year date of installation.  Once the year is over, you can
uninstall and reinstall it as long as you delete the file
"Catalog.Livesubscribe" (which is not removed when NAV is uninstalled). 
NAV 2002 will function just fine on Win-9x, 2K and XP.

Whether or not NAV 2002 is sufficiently hooked into all aspects and
services of windoze operation - I don't know.  It seems to be able to
scan files as soon as they're created, but it may not be able to detect
an exploit-in-progress if it doesn't involve the creation of temp files.

NAV 2003 and higher employed more sophisticated license-tracking - I
don't know if these latter versions can be installed and accept updates
without being registered with Symantec.
--- NewsGate v1.0 gamma 2