This microsoft webpage provides guidance, amongst other things, on disabling SMB1 in Windows 2008.
It mentions a registry key
I haven't yet followed any of those instructions but when I inspect
HKLM:\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters on a W2008 machine there is no entry for SMB1 (or any other entries which appear to relate to SMB).
What is the significance of this? Is it possible to have configured the machine so that it knows nothing about SMB?