Skype malware message

Got a message from someone called System.scan.c7 on skype just now


WINDOWS REQUIRES IMMEDIATE ATTENTION
=============================

ATTENTION ! Security Center has detected
malware on your computer !

Affected Software:

Microsoft Windows NT Workstation
Microsoft Windows NT Server 4.0
Microsoft Windows 2000
Microsoft Windows XP
Microsoft Windows Win98
Microsoft Windows Server 2003

Impact of Vulnerability: Remote Code Execution / Virus Infection /
Unexpected shutdowns

Recommendation: Users running vulnerable version should install a repair
utility immediately

Your system IS affected, download the patch from the address below !
Failure to do so may result in severe computer malfunction.


For some reason I feel no desire whatever to click on the link...

Skype have got back to me and told me that it's actually a company trying to sell their "security software" by this means, probably not malware but the message certainly isn't a genuine diagnostic thing. I would hope that they delete the account.