Users Guide

106 Installing Managed System Software on Microsoft Windows Operating Systems
structure and GUIDs, which break any provided patches or updates. When it
is necessary to make any changes to a vendor-provided MSI package, a .mst
transform file should always be used to do so.
Windows Installer Logging
Windows includes a registry-activated logging service to help diagnose
Windows Installer issues. To enable this logging service during a silent install,
open the registry editor and create the following path and keys:
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Window
s\Installer
Reg_SZ: Logging
Value: voicewarmup
The letters in the value field can be in any order. Each letter turns on a
different logging mode. Each letter's actual function is as follows for MSI
version 3.1:
v - Verbose output
o - Out-of-disk-space messages
i - Status messages
c - Initial UI parameters
e - All error messages
w - Non-fatal warnings
a - Startup of actions
r - Action-specific records
m - Out-of-memory or fatal exit information
u - User requests
p - Terminal properties
+ - Append to existing file
! - Flush each line to the log
"*" - Wildcard, log all information except for the v option. To include the
v option, specify "/l*v".
Once activated, you can find the log files that are generated in your
%TEMP% directory. Some log files generated in this directory are:
• Managed System Installation
–SysMgmt.log
• Management Station Installation
– MgmtSt.log