Every server that runs Microsoft Dynamics CRM 4.0 requires a Server License. Three Server Editions are available for Microsoft Dynamics CRM 4.0:
Microsoft Dynamics CRM 4.0 Workgroup Server
*Replaces the Small Business Edition of CRM 3.0.
*Includes and supports a maximum of 5 named User licenses.
*Runs on any version of Windows Server.
Microsoft Dynamics CRM 4.0 Professional Server
*Rich feature set with no licensing based scalability limit.
*Single-tenant deployment.
Microsoft Dynamics CRM 4.0 Enterprise Server
*Rich feature set with no licensing based scalability limit.
*Multi-tenant deployments.
Client Access Licenses
*User CAL - With a user CAL, each licensed user may access the Server from any device.
*Device CAL - With a device CAL, the CAL is assigned to a device and may be shared by non-concurrent users over time, such as in a shift worker or call center scenario.
*Limited Access – Grants read only access to users.
