Search AppDeploy

Home > FAQs > MSI > How Do I Enable Windows Installer Logging?

How Do I Enable Windows Installer Logging?

Windows includes a registry-activated logging services to help diagnose Windows Installer issues. This article describes how to enable this logging service.

Open the registry with Regedt32.exe and create the following path and keys:
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\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 1.1:
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 - Start up 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, the log files that are generated may be found in your %TEMP% directory.

Printer Friendly Version
Problem? Question? Comment? Please, let us know!

Return to the MSI FAQ or the FAQ Home.