User Guide

Using VirusScan Command-line Options
160 McAfee VirusScan Anti-Virus Software
/NOBREAK On-demand
scanning only
Disables CTRL-C and CTRL-BREAK during
scans.
Users will not be able to halt scans in progress with
/NOBREAK in use.
Use this option with /LOG to create a meaningful
audit trail of regularly scheduled scans.
/NOCOMP On-demand
scanning only
Extended
memory
required.
Skips checking of compressed executables
created with the LZEXE or PkLite file compression
programs.
This reduces scanning time when you do not need
to run a full operation. Otherwise, by default, the
scanner checks inside executable, or
self-decompressing, files by decompressing each
file in memory and checking for virus signatures.
The scanner will still check for modifications to
compressed executables if they contain VirusScan
validation codes.
/NODDA On-demand
scanning only
No direct disk access. This prevents the scanner
from examining the boot record.
This feature has been added to allow the scanner
to run under Windows NT.
You might need to use this option on some
device-driven drives.
Using /NODDA with the /ADN or /ADL switches
may generate errors when accessing empty
CD-ROM drives or empty Zip drives. If this occurs,
type F (for Fail) in response to the error messages
to continue the scan.
/NODISK On-access
scanning only
Does not scan boot sector while loading the
VShield scanner.
/NODOC On-demand
scanning only
Does not scan Microsoft Office files.
/NOEMS On-access
scanning only
Keeps the VShield scanner from using extended
memory (XMS).
/NOEXPIRE On-demand
scanning only
Disables the “expiration date” message if the
VirusScan data files are out of date.
/NOMEM None Does not scan memory for viruses.
This greatly reduces scan time.
Use /NOMEM only when you are absolutely
certain that your computer is virus-free.
Table C-1. VirusScan command-line scanner options