If highlighting doesn't start automatically, it can have 2 reasons: 1. PSpad doesn't know file extension and isn't able to assign any highlighter
2. Your file exceeded size set in Program settings / Direct edit button HlUpToSize=nnnn (size in bytes) -- <http://forum.pspad.com/read.php?2,54161,54163> PSPad freeware editor http://www.pspad.com
