My software products (WSE RemoteApp and WSE WorkFolders) can be used on Windows Server 2016, 2019, 2022, or 2025, and the WSEE Installer can be used on Windows Server 2019, 2022, or 2025. You can switch between using any of those versions of Windows Server as desired. However, since your license is valid for single server use only, you cannot run the software on multiple versions of Windows Server at the same time (i.e., it’s one server install per purchased product). Additionally, in-place upgrades across those different versions of Windows Server are fully supported by the WSEE Installer as well.

That being said… If you are currently running Windows Server 2012 R2 Essentials, then I strongly recommend that you in-place upgrade it to Windows Server 2016 Essentials first (and verify that everything is working) before you then in-place upgrade it on to Windows Server 2022 (or 2025). I talk about doing that over here.

So… The answer to your question is yes.

Lastly, Windows Server 2016 (and hence my software products and the WSEE Installer) will reach end of life on January 12, 2027 (i.e., in about one years time). I plan on retiring at that time and so I (nor my website) will be available going forward from there and so you might want to take that into consideration as well. I haven’t decided what I’m going to do with my software products and the WSEE Installer as of yet, but I’ll most likely release final “sunset” versions of them that my paying customers can continue to use once I’m no longer around (at least until Essentials itself goes kerplunk in the night anyway).

Thanks, Mike. That spelled it out well for me. (When I got to the add-to-cart and pricing page, the note there seemed to conflict with ability to use between the different supported versions — not at same time, of course. “NOTE: Each of our products are licensed specifically to the server operating system for which they were designed to run under. Therefore, you must choose the EXACT operating system that your server is currently running in order to receive a functional license for your product purchase.”)

I appreciate your very honest and appropriate caveat about the EOL for WS 2016 WSEE.  I think it will still be worth it. And I’m even more appreciative of your time and talent in making the WSEE Installer available along with the extensive support you’ve already provided.

In preparation, I’ve already done an in-place upgrade of WS 2012 R2 and its WSE VM to WS 2016. Unfortunately, I’m one of the users that ran into complications:  Windows updates failed, and event logs are chock full of errors, apparently caused by leftovers from the upgrade change. I was able to troubleshoot enough to get all the updates on the host but not on the VM – so far, anyway.  It would be nice to have a script or similar tool that could extract full settings of currently used WSEE and apply them to a clean install of a newer WS.