Maybe you want to make a portableapps.com-version of this:
"With SecureWAMP you can set up a secure WAMP-System ( i.e. an installation that combines Windows, Apache, MySQL and PHP ) in a few minutes without knowledge - completely administered via a GUI!"
Homepage+Download:
http://securewamp.org/
What makes it more useful than the already-existing XAMPP Portable? Looking at the specs, I don't see a significant difference.
You can use it in a productive enviorment and you can control all advanced settings via GUI. XAMPP only supports start/stop via GUI.