:o)
Jon - cmon mate - this is not Dynamics CRM Forum haha
Dynamics CRM 4.0 Workgroup Server: Dynamics CRM 4.0 Workgroup Server offers the same features as Professional Server, but does not operate under the Server/CAL licensing model. CRM 4.0 Workgroup Server includes licenses for a maximum of five users to access the server from any number of computers or other devices. There are no licenses available for additional users, devices, or external users.
Client Access Licenses
Dynamics CRM 4.0 Professional and Enterprise require a client access license (CAL) for each user or device accessing the server. There are three different types of CALs available on either a per-user or per-device model.
Limited CAL: The limited CAL allows a user or device read-only access to the CRM server. In other words, users with a limited CAL may access CRM information but may not make any edits or updates to it.
Full Use Additive CAL: When used in conjunction with a limited CAL, a full use additive CAL allows a user or device write access to the CRM server, thus allowing the user or device full read-write access to the server. The full use additive CAL may be used only in conjunction with a limited CAL.
CAL: The CAL provides a user or device full read-write access to the CRM server. The CAL is functionally equivalent to a combined limited and full use additive CAL.
As with many other Microsoft server technologies, the CALs listed above are each available on a per-user or per-device basis. A user CAL authorizes one user to access the CRM server from any computer or other device (for example, when an employee accesses the server from a computer at work and another at home). A device CAL authorizes one computer or other device to access the CRM server, regardless of the number of users (for example, on a shared workstation).
So - to answer your question - there are CAL's for Professional or Enterprise Editions according to TechNet Plus folks.
However you can use the following link for a trial without buying TechNet Plus:
Microsoft Dynamics CRM 4.0: 90-Day Trial Versions
http://www.microsoft.com/downloads/details.aspx?FamilyID=a9c110fd-aac8-4d2a-b401-7801b1866e82&displaylang=en
Microsoft Dynamics CRM 4.0 Workgroup
Trial key (5 CAL limit)
Microsoft Dynamics CRM 4.0 Professional
Trial key (no CAL limit)
Microsoft Dynamics CRM 4.0 Enterprise
Trial key (no CAL limit)
