42 lines
1.5 KiB
Markdown
42 lines
1.5 KiB
Markdown
# Introduction
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CVR0 is a subprotocol of the Mobile Status Notification Protocol.
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It was introduced officially in Client Version 1.0.0863, along with [MSNP2](msnp2.md).
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It is used for requesting the latest client information in case no other protocols were supported.
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# Command information
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It introduces the commands:
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* [CVQ](../commands/cvq.md)
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*No error codes were known to be introduced in this version*
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*No commands were known to be removed in this version*
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# Known changes
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(from Beta 2):
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* Changed [CVR](../commands/cvr.md) to [CVQ](../commands/cvq.md)
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* CVQ: Added fallback URL to response (parameter 5)
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* [[MSNP8](msnp8.md) and higher]: Added current principle address to request (parameter 8)
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# Client-server communication examples
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## Older protocols
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* [MSNP2](msnp2.md)-[MSNP7](msnp7.md), example using Client Version 1.0.
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```
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C: VER 1 MSNP2 CVR0
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S: VER 1 CVR0
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C: CVQ 2 0x0409 win 4.10 i386 MSMSGS 1.0.0863
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S: CVQ 2 5.0.0537 5.0.0537 1.0.0863 http://download.microsoft.com/download/msnmessenger/install/5.0/w98nt42kmexp/en-us/setupdl.exe http://messenger.microsoft.com
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```
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Server disconnects client.
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## Newer protocols
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* [MSNP8](msnp8.md) and higher, example using Client Version 6.1.
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```
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C: VER 1 MSNP10 MSNP9 CVR0
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S: VER 1 CVR0
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C: CVQ 2 0x0409 winnt 5.1 i386 MSNMSGR 6.1.0211 MSMSGS example@passport.com
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S: CVQ 2 7.0.0813 7.0.0813 6.2.0205 http://msgr.dlservice.microsoft.com/download/5/d/9/5d9bb5b2-49c7-4890-94ab-d1d5e44a0e6d/Install_MSN_Messenger.exe http://messenger.msn.com
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```
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Server disconnects client.
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