I'm a big fan of portable apps. They aren't exactly useful as they were intended on a USB thumbdrive, but put them on a regular hard drive and they blow the installer based versions out of the water.
One of the big, missing portable apps is an Apache + MySQL + PHP combination. Well, today, I've resolved that issue:
Portable Apache + MySQL + PHP for Windows
I built the core of that in about 24 hours of work. It took me another 72 hours before completing this application because I needed this:
CreateProcess() API for the Command-Line
I had to develop that because Apache refused to run in the background (not as a service) detached from the console. Do you ever get the feeling that sometimes you have just dropped a nuke on a fly in terms of problem solving? With the second application, I totally got that feeling as I was developing it.
Anyway, I hope you get a lot of use out of these nifty tools!