Windows 10: Looking for advise on mixing different CAL and RDS versions

Discus and support Looking for advise on mixing different CAL and RDS versions in Windows 10 Gaming to solve the problem; Hello,Could someone help me with the following query please: we are just about to start a new project, and I’ve received a question form one of the... Discussion in 'Windows 10 Gaming' started by JoannaSka, Mar 6, 2025.

  1. JoannaSka Win User

    Looking for advise on mixing different CAL and RDS versions


    Hello,Could someone help me with the following query please: we are just about to start a new project, and I’ve received a question form one of the engineers if it’s OK to mix Win Server CALs per Device with RDS per User? As a Licensing Manager I am not sure if that is actually possible from technical point of view - I assume that with 2019 or 22/25 it is easy to manage, but the main question is that does Microsoft allows for such usage in terms of licensing?Just to clarify – I’m talking about mixing CAL per Device as a base with RDS per User license as a addon CAL per Dvc+RDS per Usr, not C

    :)
     
    JoannaSka, Mar 6, 2025
    #1
  2. Fatmasari Win User

    Activate RDS CAL 2019 on Windows Server 2016

    Dear Microsoft Support,



    We recently purchased Windows Server RDS CAL 2019.

    When we tried to install Windows Server RDS CAL 2019 into Windows Server 2016, it shows the license is not recognized and couldn’t install.



    My questions are :

    1. Can’t Windows RDS CAL 2019 be installed in Windows Server 2016? If can, how?
    2. Is there any way to downgrade RDS CAL from 2019 to 2016 version?

    Thanks,
     
    Fatmasari, Mar 6, 2025
    #2
  3. RDS CAL downgrade rights under Volume Licensing

    Hi,

    Good day everyone!

    I would just like to inquire where can I seek assistance for my inquiry regarding RDS CAL, if it has downgrade rights since it is under Volume Licensing?

    This is an inquiry from our Partner since they are proposing RDS CAL 2019 licenses but the
    existing License Server is Windows 2012 R2 (upon checking the aforementioned Windows Server version and RDS CAL version is not compatible)



    We always offer the latest version in the VLSC portal, but we’d like to know if RDS CAL has downgrade rights under Volume Licensing?



    I apologize if I am sending this on the wrong window, I just tried posting this here to be here.

    Appreciate any suggestions/email response for this matter. Thank you very much!

    Best Regards,

    Chelsi Maitim
     
    Marie Chelsi Maitim, Mar 6, 2025
    #3
  4. Looking for advise on mixing different CAL and RDS versions

    RDS CALs

    I have Windows server 2019 RDS CALs (User) installed on our license server. I would like to know if I can use these 2019 RDS CALs with server 2016. Is it backward compatible? I can see that the 2016 server has picked up the license server successfully. Just wanted to know if this will work successfully going forward.
     
    Shehan Shanthiratne, Mar 6, 2025
    #4
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Looking for advise on mixing different CAL and RDS versions

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