Problema desconocido

Hola a todos, tengo este mensaje de error en el visor de sucesos, pero no se
como repararlo:

Event Type: Error
Event Source: DCOM
Event Category: None
Event ID: 10021
Date: 12/13/2004
Time: 3:08:10 PM
User: N/A
Computer: PCPERSONAL
Description:
The launch and activation security descriptor for the COM Server application
with CLSID
{2A6D72F1-6E7E-4702-B99C-E40D3DED33C3}
is invalid. It contains Access Control Entries with permissions that are
invalid. The requested action was therefore not performed. This security
permission can be corrected using the Component Services administrative
tool.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.

Alguien sabe como y por que me manda este mensaje de error?, desde que veo
este error, mi Internet se ha vuelto mas lento.
Win XP SP2
Saludos