Yes, seems this information is missing in documentation. I found only one line about this in file PrinAll.vbs which is included in PSPad release (pspad452en.cab):
const module_name = "PrintAll" _'this name must be unique !!!_ -- <http://forum.pspad.com/read.php?2,35687,35692> PSPad freeware editor http://www.pspad.com
