Okay, quick story. My client has a Dell with windows 98. He had it cleaned last week and bought Norton internet security 2005. Went home,connected to the broadband( before the AV was installed) and got infected. As he tried to istall Norton he got an error" Norton has failed to install, do you want to continue"
At this stage he called me, on running Pestpatrol,spybot etc, found multiple spyware and adware on the unit and removed them. Ran Stinger and reported clean and ran Hirens with F-prot also clean.
Then the fun part, on reboot and trying to install Norton Internet sercurity 2005, it fails again, this time saying that a failed instal or uninstall was found, please reboot and try again.
Again tried this and also all the ideas from the Symantec website. No help.

Also during this time it keeps trying to connect to the web and when the DSL is connected several webpages are displayed. Ctrl-Alt-DEL shows Rundll32.exe is running and when I stop this, the pages stop comming up (for a while) then later they appear again. I know there is something on the unit stopping me installing Norton but is not showing up in any of my Spyware or adware or AV programs.
When I check out Rundll32.exe in the Windows folder it looks ok and is dated April 1999

Spybot has just come back and found a load od "Coolwww" and a DSO exploit on the system. I just clean this lot last night.

Any Ideas?

Robert