A class property gives an object access to specific functionality. The class refers to a dynamic-link library (DLL) that is installed on the client or server machine and holds the required functionality.

Specialized classes exist for business components or applets that have specialized behavior or features. Examples of specialized modules include Quotes, Forecasting, and Correspondence. Anything other than CSSBusComp, CSSBCBase, CSSFrame, CSSFrameList is specialized class.