@@ -577,6 +577,8 @@ func sockConn(timeout time.Duration) (net.Conn, error) {

 	var c net.Conn

 	switch daemonURL.Scheme {

+	case "npipe":

+		return npipeDial(daemonURL.Path, timeout)

 	case "unix":

 		return net.DialTimeout(daemonURL.Scheme, daemonURL.Path, timeout)

 	case "tcp":

new file mode 100644

@@ -0,0 +1,12 @@

+// +build !windows

+

+package main

+

+import (

+	"net"

+	"time"

+)

+

+func npipeDial(path string, timeout time.Duration) (net.Conn, error) {

+	panic("npipe protocol only supported on Windows")

+}

new file mode 100644

@@ -0,0 +1,12 @@

+package main

+

+import (

+	"net"

+	"time"

+

+	"github.com/Microsoft/go-winio"

+)

+

+func npipeDial(path string, timeout time.Duration) (net.Conn, error) {

+	return winio.DialPipe(path, &timeout)

+}