func (s *ProxyServer) platformCheckSupported(ctx context.Context) (ipv4Supported, ipv6Supported, dualStackSupported bool, err error) {
	// Check if Kernel proxier can be used at all
	_, err = winkernel.CanUseWinKernelProxier(winkernel.WindowsKernelCompatTester{})
	if err != nil {
		return false, false, false, err
	}

	// winkernel always supports both single-stack IPv4 and single-stack IPv6, but may
	// not support dual-stack.

type KernelCompatTester interface {
	IsCompatible() error
}

// CanUseWinKernelProxier returns true if we should use the Kernel Proxier
// instead of the "classic" userspace Proxier.  This is determined by checking
// the windows kernel version and for the existence of kernel features.
func CanUseWinKernelProxier(kcompat KernelCompatTester) (bool, error) {
	// Check that the kernel supports what we need.