Having just updated spybot with the 26/1/07 I got this warning

Code:
Microsoft.Windows.Security.EnableDCOM: Settings (Registry change, nothing done)
  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Ole\EnableDCOM!=Y
I disabled DCOM months ago as many security sites say it is a security risk.

from www.grc.com

What does DCOM do for you?

Well let's see . . . it attracts Internet worms and permits your system to be remotely compromised by malicious hackers. Other than that, it's of absolutely no practical use other than to adorn Microsoft's "We Have That Too" chart. There may be some custom corporate application developers who have managed to make some use of it, but mostly no one ever has. Nonetheless, it's there in Windows so that the competitors' CORBA isn't.
Spybot has never complained about it before. Why now?