This may not be a real solution, but it is something you may want to try. Go to start -> Run and type in "msconfig" without the quotes. Press enter. This will launch a little utility that you can use to enable/disabvle startup programs/processes. Go to the "Startup" tab, and look for any suspicious looking norton things, like NU(something) or NAV(something). Uncheck them to disable them. Next, reboot, and see if you still get the error! If you DON'T it means that its something that starts up with the system! Also, see if you can launch any of the Norton applications after you have done this!
Good luck. Let us know if you hjave any success!

I get the same error. It happens after doing a liveupdate for the first time. Something goes wrong when up[censored] something called "redirector" i believe. Syùantec knows about the problem, i dunno if they are planning to fix it. In the mean time i did the following: go to msconfig like shassouneh said and disable "navapw32"
 
EDIT: the error is described here:
 
http://service1.symantec.com/SUPPORT/nav.../kb/query.html?*col=kb%20us*st=1*nh=10*pcode=nav*qp=url:/nav.nsf/b69c799adfa31ecc85256aa30052f4d0,url:us-sarc,url:us-ts,url:us-cs*qt=entry%20point*miniver=nav_2002*sone=nav_2002_tasks.html*stg=*prod=Norton%20AntiVirus*ver=2002%208.x%20for%20Windows%202000/NT/Me/98/XP*base=http://www.symantec.com/techsupp/nav/*next=&sone=nav_2002_tasks.html&stg=&prod=Norton%20AntiVirus&ver=2002%208.x%20for%20Windows%202000/NT/Me/98/XP&base=http://www.symantec.com/techsupp/nav/&next=&src=csm&pcode=nav

could it be a virus.cus i'm getting the same.