User Guide

CHAPTER 11. FREQUENTLY
ASKED QUESTIONS
This chapter contains a detailed discussion of questions most frequently asked
by our users regarding the installation, configuration and operation of Kaspersky
Anti-Virus for Sendmail with Milter API.
Question
: Is it possible to use Kaspersky Anti-Virus with anti-virus
products of other vendors?
No. We recommend uninstalling anti-virus products of other vendors
prior to installation of Kaspersky Anti-Virus to avoid software conflicts.
Question
: Why does Kaspersky Anti-Virus cause a certain decrease in
server performance, noticeably loading the CPU?
Virus detection is a computationally intensive mathematical problem
requiring structural analysis, checksum calculation and mathematical
data conversions. Processor time is therefore the main resource
consumed by the application, and each new virus added to the anti-
virus database increases the overall scanning time. This is a necessary
sacrifice for the security and safety of your data.
Other anti-virus products speed up scanning by excluding both viruses
which are less easily detectable or less frequent in the geographic
location of the anti-virus vendor, and file formats that require
complicated analysis (e.g. PDF) from their databases.
In contrast, Kaspersky Lab believes that the purpose of its products is to
establish real and complete security for its users.
Kaspersky Anti-Virus gives its users maximum protection. Experienced
users can accelerate anti-virus scanning to the detriment of overall
security by disabling scanning of various file types, but we do not
recommend doing so for users who want the best protection.
For maximum user protection, Kaspersky Anti-Virus recognizes more
than 700 formats of archived and compressed files. This is essential for
anti-virus security, because harmful executable code may be hidden
inside files of any recognized format.