Input *relative* path to help file for php files in "Highlighters settings" menu, like "..\..\docs\php_manual_ru.chm". The warning is frequently displayed: "External help for PHP isn't assigned. Got to the Highlighter settings to assign external help file." Sometimes all ok.
P.S. "HTML multihighlighter" disabled. -- <http://forum.pspad.com/read.php?6,46432,46633> PSPad freeware editor http://www.pspad.com
