Yes, it is PerlScript.
The reason that I have found for going to the windows scripting host is that it is more logistically flexible than a simple DOS batch file beacuse it uses scripting languages like PerlScript and VBScript. This should allow for combining of scripts, etc.
The reason that I was given was: Corporate directive.
OzzyOsbourne sees only one troll comment. Maybe the body is not near the water at all...