diff --git a/pymediaserv b/pymediaserv
index f293b69..f7168d8 100755
--- a/pymediaserv
+++ b/pymediaserv
@@ -68,7 +68,7 @@ from SSDP import SSDPServer, SSDP_PORT, SSDP_ADDR
 s = SSDPServer()
 debug.insertnamespace('s', s)
 
-port = reactor.listenMulticast(SSDP_PORT, s)
+port = reactor.listenMulticast(SSDP_PORT, s, listenMultiple=True)
 port.joinGroup(SSDP_ADDR)
 port.setLoopbackMode(0)		# don't get our own sends
 
@@ -111,6 +111,7 @@ root.putChild('content', content)
 medianode = static.File('pymediaserv')
 medianode.contentTypes.update( {
 	'.wmv':	'video/x-ms-wmv',
+	'.asf':	'video/x-ms-asf',
 	#'.ts':	'video/mp2t',
 	'.ts':	'video/mpeg',	# we may want this instead of mp2t
 	'.m2t':	'video/mpeg',