If you run cri-dockerd on Windows with --network-plugin no-op, it will print the following:
level=error msg="can't set sysctl bridge-nf-call-iptables: open /proc/sys/net/bridge/bridge-nf-call-iptables: The system cannot find the path specified."
Looking at the source code, I see it also tries to run a modprobe br-netfilter regardless of the host OS.
The error isn't fatal, but even so, these commands probably shouldn't be executed on Windows in the first place.