Endpoint Protection

I am currently working on a network that has approx 1000 computers. We recently moved from one location to another, and a lot of computers on our network are now unmanaged. We need a script or program that will removed and / or kill Symantec from a system (running Windows XP and Vista) that is unmanaged. If anyone can help me out with this, I would appreciate it!

We need to replace the sylink file which is used for communication between the Symantec Endpoint Protection Manager and Symantec Endpoint Protection Client.

Below are 2 articles

Title: The Sylinkreplacer tool for connecting SEP clients to a SEPM
Web URL: https://www-secure.symantec.com/connect/downloads/sylinkreplacer-tool-connecting-sep-clients-sepm

Title: 'How to change a Symantec Endpoint Protection client from unmanaged to managed in MR3 and above using the Sylink Drop utility'
Web URL: http://www.symantec.com/business/support/index?page=content&id=TECH92678&locale=en_US