Windows installer MSI format

Question

I cannot find the MSI format specification. It says that its an open standard, but I don\'t see any documentation - just bits and pieces of information here and there.

Answer 1

Are you sure that .MSI database format is required to modify some installer? Have you heard about the Orca tool? If not, this MS KB article is for you:

http://support.microsoft.com/kb/255905