Unable to load configuration information

Hello Whizzes,
When I try to retrieve the COM class factory for component with CLSID, I got this error message. The error says it is unable to load configuration information. How do I fix the problem without any reinstallation? Hunting for solution, please help me. Your help is really great. Thanks a lot.

Error
Unable to load configuration information. Retrieving the COM class factory for component with CLSID
{69c3e4bb-acc2-41f0-85d6-403c53A38D} failed to the following error: 80040154.
