Since I have been playing a lot with MSI installers latelly and I'd like to share two tips with those authoring Windows Installers with WIX:
- You can get a lot of information by running your installation package through msiexec:
 
 msiexec /i CustomAction.msi /lvx log.txt
 
 The command above just runs CustomAction.msi logging everything including the kitchen sink :)
 
- You can use 7Zip to open msi files (and ofcourse, extract content from it)
Adriano
 
