Iam helping a friend who got a virus and he thinks its w32.bugbear.b.dam

When you try 2 open norton antivirus it just shut it down after like 5 sekunds so we have problems with removing it.

The virus is here: "c:\windows\all users\menuen start\programmer\start\Iyyq.exe" (danish windows 98)

the file size is 73.728byte

I have tryed 2 delete the file from dos and then it's gone.
but when i try 2 update norton antivirus (connect to the internet with 56k) then it came back
after like 40 sekunds and shut antivirus down again.

Any idea how 2 fix the virus ?

sorry 4 my bad english