McAfee MANAGEMENT EDITION 2.5 Administrator's Manual page 272

Using the AUTOINST Utility
AUTOINST.EXE also adds the following section and key to WIN.INI:
[NetworkAssociates]
NetworkAssociatesInstalled=Yes
These lines prevent AUTOINST from adding the installer's executable path to
the RUN= line more than once. If on a subsequent server login, AUTOINST
runs, it will not alter the RUN= line if it finds the NetworkAssociatesInstalled
key. Without this, the users will run the installer SETUP.EXE each time they
log in.
Optional parameters
The optional /FORCE parameter will add to the RUN= key, regardless of
whether the AUTOINST program has been run before.
So, to run the Update Requester you need something like this example:
MAP ROOT I:=SERVER\SYS:PUBLIC\REQUESTR
#AUTOINST C:\WINDOWS I:MEUPRQ16.EXE /FORCE
DOS error levels
AUTOINST.EXE returns DOS error levels that may be tested within batch
files. Consult the following table for an explanation of these levels:
Error level
4
3
2
1
0
272 Management Edition
Description
The program failed the integrity check. The file is corrupted or
has been tampered with.
An invalid parameter was passed to AUTOINST.
Unable to locate WIN.INI file in specified location.
Unable to read file; file too large.
Program completed successfully.