Title says enough (For those who don't know, scilexer is an editing control, like the one SciTE uses)
It now supports multiple editors, and allows you to write your own lexer.
Functions:
Kip
Old version (where AutoIt is the standard language)
SciLexer.zip
New version (which allows you to create your own lexer):
_SciLexer.zip
I recommend to use the new version
Edit: AutoIt now isn't the standard language anymore