Thanks for the info. Now Im confused, though.
1. I have definitely not intentionally downloaded it from either of those 2 sites. I have never visited
www.WMPLugins.com, and I cant remember the last time I looked at the Nero website.
2. I have Nero v5.5.10.56. I havent upgraded it recently, or even used it in the last few months that I can remember.
3. It (the plugin) doesnt appear in my list of installed programs.
4. I played around a bit and discovered something else: in MC, if I click on Handheld Player in the Action window, I get a box above the action window for this plugin. It has one button labelled 'Synchronise' and an area for dropping files into. Right clicking on the plugin window and choosing options gives me an MC dialog labelled 'Handheld Options'. It contains the same controls as the handheld options in Tools/Options.
I cant figure the 'CD burning' thing with the 'handheld' thing. It feels as if something is wrong. However from the replies it seems to be benign, so no worries.
Like Doug, Im hoping SteveG can clear this up for me. You there, Steve?