If you are a developer or a designer, I'm sure you were faced with a need for a web server. You move to another computer / laptop , you need to run your site locally , simple script.... and you need to go through the whole procedure of installing software that you need to use only once or twice.
Well, as I found out there is a nice solution to this:
Mongoose
Mongoose is an ultra light-weight web server for Windows. It's 56 kb, yes things like this still exist, not all software developers rely on heavy VB library abuse.
It can run even from a single file, no need to install / start / stop services. Standalone application is sufficient for most basic stuff, though I think you can also set it up for more complicated usage.
You can easily plug-in also PHP, all you need to do is copy 3 files: php-cgi.exe, php5.dll and php.ini into same directory, then add 2 lines of code into Mongoose config. Adding SQL is easy too.
Only disadvantage is it doesn't have graphical interface, but that is not a problem for developers anyway.