Windows Installer Error Code Reference

Recently, I was trying to debug an installer problem for one of our customers. The MSI log file came back with a list of error codes, but I could not find out what they meant, until I happened on the following site: Its an invaluable reference : Windows Installer Error Code Reference Also, if you dont know how to enable logging, here is an easy way through the registry: Add the following keys and values [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer] "Logging"="voicewarmup" "Debug"=dword:00000007