DMZ and NIS 2009

Since my System Works 12 standard will be expiring at the end of the year, I am trying to decide between getting NAV 2009 or NIS 2009. What I would like to know is will NIS 2009 allow me to use the DMZ that is available with my modem/router. I have one program in which I live in just about and for that program to work correctly, I need to go on the DMZ.  It is an old program, but it is the site I use for playing Unreal Tournament 99 with my friends for the last 10 years or so. I know that both the site and the game will work with the NAV 2009 part of System Works which has been updated to 16.7.2.11. I'm hesitant about getting the 2010 versions because of the possibility that Sonor 2 will block GameSpyArcade and Unreal Tournament 99. I don't want to take the chance to try it out and then find out that it does get deleted or blocked. Will NIS 2010 allow me to use the DMZ? If there is anything in the program that blocks other programs based on the number of people who use Norton's and the other programs, then it may very well get deleted.

 

I'm running XP Pro sp3 and the updates since then. Also IE 7..