Scott Wedekind, a member of the Altiris SWAT Team, has created a cool tool that will tell you which Altiris products have been installed onto a Notification Server (NS) as well as allow you to compare that report with similar results from other Notification Servers. Please refer to https://kb.altiris.com/article.asp?article=32508&p=1 for full details as well as to obtain this very cool tool.