When you enable Integration Services on a pre-Windows 10, Windows Server 2016, or Windows Server 2019 virtual machine, and then you verify the status of the Integration Services service state by using a command such as Get-vmintegrationservice, you receive an error message that resembles the following:
The protocol version of the component installed in the virtual machine does not match the version expected by the hosting system
In the reported issue, the down-level guest is behaving correctly. The secondary status that is reported through WMI or Windows PowerShell includes an error string that sounds alarming but that you can safely ignore.
This behavior is by design.