As you have seen once Norton 2004 Products have been install and a wrong key has been entered, Norton Products aren't able to run, even if you uninstall and reinstall them, well here is the registry entries taht you have to delete as well as the folders

The registry files you need to delete

HKEY_CLASSES_ROOT and delete all symatec entries (there is alot of entries so dont panic just delete all of them)

Second you need to delete the following

HKEY_CURRENT_USER\Software\Symantec

and

HKEY_LOCAL_MACHINE\SOFTWARE\Symantec

Finally delte the folders call Symantec

C:\Program Files\Symantec

C:\Program Files\Common Files\Symantec Shared

And the hidden one thats is at (Must enable "Show hidden files and folders" under the file option menu)

C:\Documents and Settings\All Users\Application Data\Symantec

After doing all this crap reboot and install a fresh copy of Norton

Microsoft Windows XP won't allow you to uninstall Internet Explorer. How can you fix the browser or even reinstall the program if it becomes corrupt?

If you don't yet have the very latest Internet Explorer, you can fix many problems by visiting

http://windowsupdate.microsoft.com

and updating to the latest version. If you're already up to date, however, the site won't let you reinstall the program. You need to fool the system into thinking you don't have the latest version.

Launch REGEDIT from the Start menu's Run dialog and navigate to the key HKEY_LOCAL_MACHINE\SOFTWARE\ Microsoft\Active Setup\Installed Components\{89820200-ECBD-11cf-8B85-00AA005B4383}. In the right-hand pane, double-click on the DWORD value IsInstalled and change it from 1 to 0 (no matter whether you choose Decimal or Hexadecimal). Close REGEDIT and go to the Windows update site again. Now it should let you "update" IE and, with luck, fix the problems.

By the way, you can do the same thing if you need to repair Outlook Express, but at the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{44BBA840-CC51-11CF-AAFA-00AA00B6015C}.