The Classic client is acomponent in Microsoft Dynamics NAV 2009. The Classic client was the only client in earlier versions of Microsoft Dynamics NAV. It remains a viable option for interacting with Microsoft Dynamics NAV applications and data.
The Classic client runs business logic locally, and displays data in forms, such as card forms or list forms. You design forms in a visual design environment with precise layout information.
You can migrate users and applications from the Classic client to the RoleTailored client. Microsoft Dynamics NAV 2009 is designed to accommodate both types of clients in parallel.
The Classic client is installed when you select either the Client Installation Option or the Developer Environment Installation Option in Microsoft Dynamics NAV Setup.