The condition is 32b version, 64b version doesn't support scripting yet.
In the program settings / System scripting must be enabled.
In this case you will see Script menu with all scripts

Your script file you downloaded place int PSPad\Script\<language name> folder.
VB files into VBScript folder, JS files into JavaScript folder

I hope we are talking about this kind of extensions

PSPad freeware editor

Odpovedet emailem