From advice on another site, I tried the following.
--Restart in Safe Mode
--Run Norton removal program (when finished, the program now tells me that the virus was removed).
--I then went to the directory with the infected file and I was able to delete it completely (also from Recyle Bin)
After this, I can not longer find any evidence of the presence of this virus. Norton scans come up clean.
Is there some other way of confirming that the virus is totally gone?