ASP application accessing a C++ COM DLL is giving security error.

I have an ASP (not ASP.NET) application installed in Vista (Build : 5384).
This application is using a C++ COM DLL. The ASP application is unable to
access the C++ COM DLL. It is giving an error. When I open the Security
Event Log, I can see this

The application-specific permission settings do not grant Local Activation
permission for the COM Server application with CLSID
{8F7B0B2D-4DC3-331D6-8847-00B0D06FF25E}
to the user DOMAIN\USER SID (S-1-5-21-1412128295-2049115561-7473742-1796)
from address LocalHost (Using LRPC). This security permission can be
modified using the Component Services administrative tool.

I followed the steps given in the KB article
(http://support.microsoft.com/?kbid=899965). Still I am getting the same
problem.

Can anyone give me some suggestions regarding the above said problem.

-John