Kaspersky AntiVirus 6 and Outlook

[Howard Kaikow]

Anybody know what KAV 6 is doing to change the size of ALL .pst files on a computer?

An AV program must not modify ANY file unless so directed by the user.

[Howard Kaikow]

I've got a multiboot system, with a different version of Office in each OS.

OS on C has Office 97
OS on F has Office 2000
OS on G has Office XP
OS on J has Office 2003.

Main OS is on J and has NAV 2006.

Last week, I installed Kaspersky AV 6 in the OS on the G drive.
While running a full system scan with KAV, I noticed that each of the 4
outlook.pst files changed in size.

outlook.pst on C changed from 353KB to 384KB.
outlook.pst on F changed from 513KB to 560KB.
outlook.pst on G changed from 480KB to 512KB.
outlook.pst on J did not change in size.

Sue Mosher's tyo2kp.pst changed from 624KB to 640KB.
"Building Microsoft Outlook 2002 Applications.pst" changed from 7696KB to
7744KB.

Is it really necessary for an AV program to change the size of a PST when
scanning?
KAV did not change the PST file sizes when KAV was installed. Tools |
Options, in Outlook 2002, does get a Kaspersky AV tab.

Of course, since KAV is installed in the OS on the G drive, Outlook 2002 is
the current Outlook.
Does this mean that the outlook.pst installed on C and F have to get changed
when looked at with the Outlook on G?
Even if so, why would the outlook.pst on G change size as it is native to
the Outlook on G?
pst on J drive did not change, likely because it is from Outlook 2003 and G drive uses Outlook 2002.

Yes, there are bigger problems in the world, but my feeling is that I may
need to restore each PST to its pre-scan condition.