In the highlighter settings you define compiler for each highlighger. If you some C fle, PSPad will use assigned compiler, if you edit Fotran file...
You can assign compiler for project in the project settings You can use favourite tab in the left panel and add any count of compiler (tools) you want -- <http://forum.pspad.com/read.php?2,48407,48408> PSPad freeware editor http://www.pspad.com
