Vize & Open Source
Vize (1.x) is based of a simple file patching engine that uses ResHacker scripts to modify system files.
The sources to these are here:
Note: I'm still recovering the sources from various repositories, I'll upload them in a few days.
The Anolis Project
Vize 2.0 is built with a new patching engine called Anolis which is a non-commercial open-source application suite and software library written in C#.
The Anolis project is shared by Vize's sister project: xpize (UI enhancements for Windows XP). The project is managed on CodePlex.
The Anolis Project has not produced any releases yet. We anticipate replacing the XPize Installer System entirely when we reach 1.0.
Anolis is licensed under the GNU Public License (GPL) v2.