https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASHTTP/4cbf28dc-2876-41c6-9d87-ba9db86cd40d Specifies the Exchange ActiveSync: HTTP Protocol, which enables a client device to synchronize data with the data that is stored on the server. https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASHTTP/4cbf28dc-2876-41c6-9d87-ba9db86cd40d <b>Protocol Revision:</b> 22.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP].pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-240416.docx">DOCX</a></li></ul> Tue, 16 Apr 2024 MS-ASHTTP-20240416 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASHTTP/4cbf28dc-2876-41c6-9d87-ba9db86cd40d <b>Protocol Revision:</b> 22.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-220429.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-220429.docx">DOCX</a></li></ul> Fri, 29 Apr 2022 MS-ASHTTP-20220429 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASHTTP/4cbf28dc-2876-41c6-9d87-ba9db86cd40d <b>Protocol Revision:</b> 21.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-181211.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-181211.docx">DOCX</a></li></ul> Tue, 11 Dec 2018 MS-ASHTTP-20181211 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASHTTP/4cbf28dc-2876-41c6-9d87-ba9db86cd40d <b>Protocol Revision:</b> 21.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-181001.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-181001.docx">DOCX</a></li></ul> Mon, 01 Oct 2018 MS-ASHTTP-20181001 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASHTTP/4cbf28dc-2876-41c6-9d87-ba9db86cd40d <b>Protocol Revision:</b> 20.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-180724.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-180724.docx">DOCX</a></li></ul> Tue, 24 Jul 2018 MS-ASHTTP-20180724 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASHTTP/4cbf28dc-2876-41c6-9d87-ba9db86cd40d <b>Protocol Revision:</b> 19.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-170919.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-170919.docx">DOCX</a></li></ul> Tue, 19 Sep 2017 MS-ASHTTP-20170919 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASHTTP/4cbf28dc-2876-41c6-9d87-ba9db86cd40d <b>Protocol Revision:</b> 18.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-170228.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-170228.docx">DOCX</a></li></ul> Tue, 28 Feb 2017 MS-ASHTTP-20170228 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASHTTP/4cbf28dc-2876-41c6-9d87-ba9db86cd40d <b>Protocol Revision:</b> 17.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-160609.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-ASHTTP/[MS-ASHTTP]-160609.docx">DOCX</a></li></ul> Thu, 09 Jun 2016 MS-ASHTTP-20160609