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Article ID: 927847 - Last Review: June 30, 2007 - Revision: 2.11

SUMMARY

This article describes the various network ports that are required for Windows Live Messenger features to work. It also lists the URLs that Messenger uses.

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MORE INFORMATION

The following table lists the network ports that are required for various features of Windows Live Messenger 8.1 on a Windows Vista-based computer.

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FeaturePort that is used
Sign in to the Messenger service TCP 80, 443, 1863
Network DetectionTCP 7001
UDP 9, 7001
Audio TCP 80, 443, 1863
TCP/UDP 30000 - 65535
Audio (Legacy) *UDP 5004 – 65535
Webcam and Video ConversationsTCP 80
TCP/UDP 5000 - 65535
File TransferTCP 443, 1863
TCP/UDP 1025 - 65535
File Transfer (Legacy) *TCP 6891 - 6900
Sharing Folders TCP 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 client program, such as MSN Messenger 5.0 or any version of Windows Messenger.

URLs

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

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URL usedURL function
https://Login.live.comHTTP over SSL (HTTPS) authentication to Windows Live ID and acquiring of 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 get 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 acquiring 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) in order 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 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


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

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APPLIES TO
  • Windows Live Messenger
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