I suggest you use another way. In highlighter setting choose proper highlighter and on the specification tab fill in as help file: http://www.google.com/search?q="%word%
After you press Alt+F1, PSpad will open googel with word under cursor as search -- <http://forum.pspad.com/read.php?2,55550,55551> PSPad freeware editor http://www.pspad.com
