Installing Splashtop on Hyper-V Core - Solution
Sometimes it's easier just to remote into Hyper-V Core and execute commands directly on the server. To install Splashtop on it, you must first install the WOW64 component.
From the command prompt:
dism /online /enable-feature /featurename:ServerCore-WOW64
Then install Splashtop using a deployment code and the following switches:
Streamer.exe prevercheck /s /i dcode=XXXXXXXXX,confirm_d=0, hidewindow=1
XXXXXXXXX is your deployment code
When upgrading, I put the new EXE on the server and run:
Streamer.exe prevercheck /s /i confirm_d=0,hidewindow=1
This does not give you access to the Streamer options, hence the use of the Deployment code, but allows you to remote in directly instead of remoting into a machine with a GUI and then RDP into the core machine.
Hope this helps anyone needing this..