WIX make a small update

I have WIX project with about 100 files and 20 mb total size for product. I have fund a bug and want to create a new .MSI file that consists only one or two changed files.

How I can do it? How shou开发者_如何学Cld my project XML looks like? Should it contains only changed files and remove all other files and components?

You're talking about a patch - "small update" is something a little different. If you're using WiX v3 then you can use the torch and pyro utilities to create a patch:

http://wix.sourceforge.net/manual-wix3/wix_patching.htm