I have just connected to the internet and I'm getting constant pop-up
messages from 'Messenger Service' telling me my Windows Registry is severely
corrupted and warning of dire consequences if I don't download from
www.RegistryFixGold.com, www.msregistrycleaner.com, and a couple of similar
sites.

I strongly suspect that this is spyware or something similar. Is that all it
is?

If so, how do I stop the darned things popping up every couple of minutes?
I've got pop-ups blocked already.

Thanks in advance.

Rho