Remote Desktop Services (RDS) in Windows Server allows users to remotely access desktops and applications. However, to use RDS legally, you need Remote Desktop Services Client Access Licenses (RDS CALs). The type of CALs you use depends on how your server is configured — either as part of a Domain or operating in a Workgroup environment. Your choice of Domain or Workgroup affects how these CALs can be managed and deployed. 
Workgroup:&nbsp;you can only use RDS Device CAL
Domain:&nbsp;you can use&nbsp;either&nbsp;RDS User CAL&nbsp;or&nbsp;RDS Device CAL
Types of RDS CALs
<ol>
<li>Per User CALs – These are assigned to individual users and allow them to connect from any device.</li>
<li>Per Device CALs – These are assigned to specific devices and allow multiple users to connect from that device.</li>
</ol>
&nbsp;You can find more detailed information about Remote Desktop Services (RDS) Client Access Licenses (CALs) directly on Microsoft's official documentation. It explains the key differences between Per Device and Per User CALs and provides guidance on licensing for both domain and workgroup environments. Here is the relevant link: Microsoft RDS CAL Licensing Guide by&nbsp;<a href="https://learn.microsoft.com/en-us/windows-server/remote/remote-desktop-services/rds-client-access-license" target="_self">Microsoft Learn</a>

Remote Desktop Services (RDS) in Windows Server allows users to remotely access desktops and applications. However, to use RDS legally, you need Remote Desktop Services Client Access Licenses (RDS CALs). The type of CALs you use depends on how your server is configured — either as part of a Domain or operating in a Workgroup environment. Your choice of Domain or Workgroup affects how these CALs can be managed and deployed.


Workgroup: you can only use RDS Device CAL

Domain: you can use either RDS User CAL or RDS Device CAL

Types of RDS CALs

 1. Per User CALs – These are assigned to individual users and allow them to connect from any device.
 2. Per Device CALs – These are assigned to specific devices and allow multiple users to connect from that device.

 You can find more detailed information about Remote Desktop Services (RDS) Client Access Licenses (CALs) directly on Microsoft's official documentation. It explains the key differences between Per Device and Per User CALs and provides guidance on licensing for both domain and workgroup environments. Here is the relevant link: Microsoft RDS CAL Licensing Guide by 

Domain vs Workgroup: How to Use RDS Client Access Licenses