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Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: wdc202 on May 23, 2008, 03:07:25 PM

Title: Avast! works when off-line ??
Post by: wdc202 on May 23, 2008, 03:07:25 PM

I booted my W98 desktop in Safe Mod(where no connection is made to the interne). I clicked my Avast icon and was surprised to see Avast activate and begin a scan, albeit VERY slowly.

How can that be? I am puzzled; doesn't Avast <require> an internet connection?

Title: Re: Avast! works when off-line ??
Post by: igor on May 23, 2008, 03:13:19 PM

Internet connection is needed only to update the virus database (or program) - not for the scanning itself.
Also, I'm not sure why it should be any slower than any other scanning...

Title: Re: Avast! works when off-line ??
Post by: Vladimyr on May 23, 2008, 04:33:50 PM

Quote from: igor on May 23, 2008, 03:13:19 PM

Internet connection is needed only to update the virus database (or program) - not for the scanning itself.
Also, I'm not sure why it should be any slower than any other scanning...

I can! Some of the "features" of 98SE in Safe Mode are...
1/. DOS compatibility mode IDE access - no bus mastering.
2/. No virtual memory.
3/. No hardware accelerated video

Title: Re: Avast! works when off-line ??
Post by: igor on May 26, 2008, 10:34:35 AM

Makes sense - even though are you sure about "No virtual memory"? It would mean some systems with low RAM would hardly be able to boot (into safe mode), IMHO...

Title: Re: Avast! works when off-line ??
Post by: Vladimyr on May 26, 2008, 03:41:29 PM

I just checked. You're suspicion is correct. Safe mode doesn't load any protected mode drivers but it does page out to Win386.swp, albeit in DOS Compatibility Mode.