SMP doesn't listen to requests

[dfpjopo]

hi i have a error in sccm 2007 sp2:

 

SMP Control Manager detected SMP is not responding to HTTP requests.  The http status code and text is 404, Not Found.

Possible cause: Internet Information Services (IIS) isn't configured to listen on the ports over which SMS is configured to communicate. 
Solution: Verify that the designated Web Site is configured to use the same ports which SMS is configured to use.

Possible cause: The designated Web Site is disabled in IIS. 
Solution: Verify that the designated Web Site is enabled, and functioning properly.

Possible cause: The SMS ISAPI Application Identity does not have the requisite logon privileges. 
Solution: Verify that the account that the SMS ISAPI is configured to run under has not been denied batch logon rights through group policy.

For more information, refer to Microsoft Knowledge Base.

 

Pllz can someone help me?