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

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Article ID: 960820 - View products that this article applies to.
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SUMMARY

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.

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Network ports

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

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FeaturePort
Sign in to the Messenger service TCP 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.

URLs

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

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URLFunction
https://Login.live.comHTTP over SSL (HTTPS) authentication to Windows Live ID and obtaining x509 certificates for secure peer-to-peer (p2p) connections for the Sharing Folders feature
http://Login.live.comHTTP 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
http://crl.microsoft.comTo access the latest Certificate Revocation List (CRL) to check the validity of a certificate
http://messenger.hotmail.com:1863Communications channel for messenger server; Microsoft Notification Protocol (MSNP) for messaging
http://gateway.messenger.hotmail.comIn 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
https://rsi.hotmail.comReceive offline messages
http://sqm.microsoft.comUpload Service Quality Monitoring (SQM) data to Microsoft (No personally identifiable information [PII] is transferred.)
http://*.edge.messenger.live.comVarious 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
http://relay.data.edge.messenger.live.comMedia 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
http://spaces.live.comFor the contact card
http://relay.voice.messenger.msn.comMedia relay used for voice
http://sup.live.comTo obtain the "What’s New" list
http://sup.live.com/whatsnew/whatsnewservice.asmxService 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.

Properties

Article ID: 960820 - Last Review: January 8, 2009 - Revision: 2.1
APPLIES TO
  • Windows Live Messenger
Keywords: 
kbpubtypekc kbinfo kbmessengerportal kbsurveynew KB960820

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