Network ports and URLs that are required for Windows Live Messenger 2009 to work


This article describes the network ports that Windows Live Messenger Version 2009 must be able to access to work on a Windows-based computer. This articles also lists the URLs that Messenger uses.

More Information

Network ports

The following table lists the network ports that Windows Live Messenger must use for specific features to work.

Sign in to the Messenger serviceTCP 80, 443, 1863
Network detectionTCP 7001

UDP 9, 7001
Voice and video (V/V)Messenger VOIP servers for call establishment of voice and video services listen on ports 1863, 443, and 80.
Media flows directly between both endpoints (either directly or through a relay server) over UDP or TCP by using any available port.
Audio (legacy) *UDP 5004 - 65535
Webcam and video conversationsTCP 80

TCP/UDP 5000 - 65535
File transferTCP 443, 1863

TCP/UDP 1025 - 65535
Whiteboard and application sharingTCP 1503
Remote AssistanceTCP 3389

TCP/UDP 49152 - 65535
Windows Live CallTCP 443, 5061

UDP 5004 - 65525
GamesTCP 80, 443, 1863

TCP/UDP 1025 - 65535

* These ports are used when you are connected to a contact through a "legacy" (old version) client program, such as MSN Messenger 5.0.


The following table lists the URLs to which Windows Live Messenger connects.

URLFunction over SSL (HTTPS) authentication to Windows Live ID and obtaining x509 certificates for secure peer-to-peer (p2p) connections for the Sharing Folders feature authentication to Windows Live ID
https://*.contacts.msn.comTo obtain the contact list
https://*.storage.msn.comStorage of the user tile, personal status message, and display name for a user so that the user can have the same set of information across all Windows Live experiences on work and home computers; (Simple Object Access Protocol [SOAP] over HTTPS)
http://*.storage.msn.comStorage of the user tile (HTTP DAV) and obtaining pictures from a user's Windows Live Space
http://c.msn.comTo set an anonymous unique ID for a user to personalize the Windows Live experience
http://*.messenger.msn.comVarious core messenger operations
http://g.msn.comRedirect URLs used for tracking the start of a URL for a particular page to Microsoft Web sites access the latest Certificate Revocation List (CRL) to check the validity of a certificate channel for messenger server; Microsoft Notification Protocol (MSNP) for messaging case a firewall is blocking the ports, Messenger can use this gateway over HTTP
http://config.messenger.msn.comDownload configuration information that is used by the Messenger client
https://ows.messenger.msn.comSend offline messages offline messages Service Quality Monitoring (SQM) data to Microsoft (No personally identifiable information [PII] is transferred.)
http://* core Messenger operations; for example, echo servers that are used to establish direct connectivity between two messenger clients for peer-to-peer (p2p) communication when clients are behind firewalls relay used to transfer binary data (files, voice, or video)
http://rad.msn.comTo download advertising content to display in the client and to download ad-sponsored personal expression content, such as display pictures and emoticons
http://appdirectory.messenger.msn.comUsed by Messenger activities/games applications that run inside Messenger applications
https://images.messenger.msn.comFor messenger image files the contact card
http://relay.voice.messenger.msn.comMedia relay used for voice obtain the "What’s New" list URL for the Social Update Service
http://vp.sip.messenger.msn.comSIP proxy for legacy and interop voice/video calls with other services (Messenger for Mac, Office Communicator)

Note Users who have computers that are behind some authenticating proxy servers may experience sign-in problems. They might have to configure the proxy server to force authentication for the following User Agent string:
MSN Explorer/9.0 (MSN 8.0; TmstmpExt).
To do this, see the documentation for your proxy server or contact your network administrator.



รหัสบทความ: 960820 - การตรวจสอบครั้งสุดท้าย: 26 ส.ค. 2009 - ฉบับแก้ไข: 1