So I plugged my SIdewinde 2 USB into my WIn10 PC today to play WC3, and all works except the darn throttle. It's calibrated in WIndows but just will not work in WC3. I can get it to work in X-Wing though.

Any one run into similar issues? Fixes?

Thanks.

DOS Wing Commander 3 had no throttle support whatsoever (which puts in perspective the woes joystick users have with Star Citizen nowadays, even after twenty freaking years Roberts hasn't learned anything).
The windows version did, IIRC there is a conversion patch somewhere on the Wing Commander CIC website but it might be problematic on modern systems.

its not, Wc3Win works well on modern machines, though you need a wrapper like Dgvoodoo2 or Sol's one.