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JSI Tip 6845. How do I troubleshoot Windows Installer problems on Windows 2000 and Windows NT 4.0?

If you are having problems with a Windows Installer .MSI installation, you can enable Windows Installer logging:

1. Copy / Paste the following to a MSILOG.REG file:



2. Merge the MSILOG.REG file with your registry, or run regedit /s MSILOG.REG.

3. Rerun the problem installation.

NOTE: To avoid a performance hit, when you are finished troubleshooting, delete the Logging Value Name.

NOTE: The log file will be located in your Temp folder, have a name that starts with MSI, and have a .log extension.

NOTE: What does voicewarmup mean?

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
NOTE: see How do I manage Windows Installer local policies by using the registry?

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