[MS-OXWSCOS]: Unified Contact Store Web Service Protocol https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXWSCOS/83966c76-cae9-4fe4-980f-caa50d1756b1 Specifies the Unified Contact Store Web Service Protocol, which enables clients to use a web service to create, retrieve, update, and delete instant messaging contacts and groups. Minor Update for [MS-OXWSCOS] (Version 6.1) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXWSCOS/83966c76-cae9-4fe4-980f-caa50d1756b1 <b>Protocol Revision:</b> 6.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS].pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-220517.docx">DOCX</a></li></ul> Tue, 17 May 2022 MS-OXWSCOS-20220517 No Update for [MS-OXWSCOS] (Version 6.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXWSCOS/83966c76-cae9-4fe4-980f-caa50d1756b1 <b>Protocol Revision:</b> 6.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-220215.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-220215.docx">DOCX</a></li></ul> Tue, 15 Feb 2022 MS-OXWSCOS-20220215 Major Update for [MS-OXWSCOS] (Version 6.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXWSCOS/83966c76-cae9-4fe4-980f-caa50d1756b1 <b>Protocol Revision:</b> 6.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-210817.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-210817.docx">DOCX</a></li></ul> Tue, 17 Aug 2021 MS-OXWSCOS-20210817 Major Update for [MS-OXWSCOS] (Version 5.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXWSCOS/83966c76-cae9-4fe4-980f-caa50d1756b1 <b>Protocol Revision:</b> 5.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-181001.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-181001.docx">DOCX</a></li></ul> Mon, 01 Oct 2018 MS-OXWSCOS-20181001 Major Update for [MS-OXWSCOS] (Version 4.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXWSCOS/83966c76-cae9-4fe4-980f-caa50d1756b1 <b>Protocol Revision:</b> 4.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-180724.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-180724.docx">DOCX</a></li></ul> Tue, 24 Jul 2018 MS-OXWSCOS-20180724 No Update for [MS-OXWSCOS] (Version 3.2) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXWSCOS/83966c76-cae9-4fe4-980f-caa50d1756b1 <b>Protocol Revision:</b> 3.2<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-160914.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-160914.docx">DOCX</a></li></ul> Wed, 14 Sep 2016 MS-OXWSCOS-20160914 No Update for [MS-OXWSCOS] (Version 3.2) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXWSCOS/83966c76-cae9-4fe4-980f-caa50d1756b1 <b>Protocol Revision:</b> 3.2<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-160613.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-OXWSCOS/[MS-OXWSCOS]-160613.docx">DOCX</a></li></ul> Mon, 13 Jun 2016 MS-OXWSCOS-20160613