I assume you're running this on the NS as a server job for the scheduling benefit of it all. Would it be easier to rewrite the script so that it e-mails the results, and the NS continues to handle scheduling?
Or, if the data in AD is already in the NS, you could schedule the report to run against particular AD data already present in the NS.
But I can't think of a way to have the NS run a script which provides output to the NS which is then incorporated into an e-mail.