The COM libraries are registered at installation time. This includes the COM classes, associated ProgIDs and the type libraries.
Visual Basic uses the type libraries if you register them to each Visual Basic Project. Do this to make full use of the features and performance enhancements of these type libraries. See Enabling the use of the COM libraries for details about project enablement.
VBScript does not use type libraries.
All the COM libraries support automatic registration and unregistration.
Use the Microsoft supplied program REGSVR32 to register or unregister a server.
REGSVR32 CCLIECI.DLL
to
unregister, issue the following command: REGSVR32 /U CCLIECI.DLL