I discovered AutoIT about a week ago and immediately realized its potential. My first several scripts were auto-installation scripts (isn't that what AutoIT was designed for?). This is my first attempt at a GUI and a standalone script.
Basically, it converts back and forth between Dell Service Tags and Express Service Codes. The most interesting part for me was the base-conversion, but I'll let you decide for yourself.
The original script: dell_convert.au3
Compiled version: dell_convert.zip