Converting VBScript's Err Object HelpFile Property
Definition: Sets or returns a fully qualified path to a Help File.
Err Object HelpFile Property
If an error is associated with a topic in a help file you can retrieve that information using the HelpLink property; the first part of the link will be the fully-qualified path to the help file itself. This command assigns the HelpLink property for the most recent error in the error collection to the variable $a:
$a = $error.helplink