Deep dive # 1: How to configure Exchange on-premise Server hybrid integration with Office 365/Azure Infrastructure and test REST API calls?

This is one of the regular discussion that comes across at my desk, how we can configure Hybrid Exchange on-premise server integration with Office 365/Exchange Online, so that users can make use of REST API. So I thought let me stitch all of them together which can be handy for both the Exchange administrators and…

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Exchange Server Quarterly Servicing updates, changes, zero day vulnerability fixes released

Yesterday we released Exchange Server quarterly servicing Cumulative Updates (for Exchange 2013/2016/2019) and Rollup Update (for Exchange 2010) for all supported versions of Exchange Server. Few highlights were, These updates have the fixes to mitigate the zero day and related vulnerabilities. An architectural change to EWS Push notification authentication – this change addresses the EWS…

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Use Microsoft Graph API to reach on-premises, cloud users of hybrid Exchange 2016

As you aware, Office 365 and Exchange Online provide a new way to work with email, calendars, and contacts. The Mail, Calendar, and Contact REST APIs provide a powerful, easy-to-use way to access and manipulate Exchange data. In this video, you will see Venkat, Principal Program Manager lead will walk you through how to use…

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OffCAT error – The Installed has insufficient privileges to access this directory

Also I remember a related error message that you may get specific to OffCAT installation. "The Installed has insufficient privileges to access this directory "C:\program files\Microsoft\OffCAT". The installation cannot continue. Log on as administrator or contact your system administrator".  If you attempt to install OffCAT as a non-administrative user, you will receive the following error…


Install error: OffCAT doesn’t install on Windows Server 2012 R2…. really?

Earlier I talked about OffCAT in-detail which helps to find out any known issues with Microsoft Office suite/apps. Based on this one of my customer tried and reported when they tried downloading from Microsoft downloads, running OFFCAT utility’s setup/.msi on their Windows Server 2012 R2; it doesn’t let them to install it. During the debugging…


Looking for Visual Studio 2015 SDK download… wait, read this first?

As you know now Visual Studio 2015 is RTM-ed and you have started to use it for building applications. Recently I came across a query from a developer, from where they can download Visual Studio 2015 SDK – as they used it to create tool windows, menu commands, editor extensions, isolated shell projects, and other…

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How to: Determine which Microsoft .Net Framework version and service pack installed?

This is one of our frequent question: How to determine which version(s) and service pack level(s) of the Microsoft .NET Framework are installed? You can use the registry information below to determine which version(s) and service pack level(s) of the Microsoft .NET Framework are installed. .NET Framework Service Pack Level Registry Key Name Value 4…

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Windows Phone 7: Visual Basic for Windows Phone Developer Tools – RTW

If you used CTP of Visual Basic for Windows Phone then today you can download the RTW version of the Visual Basic add-on from VB support for the Windows Phone developer tools. This release enables Visual Basic developers to create, build, release Silverlight applications and games for Windows Phone 7 using the final version of…


Security warning: The name of the security certificate is invalid or does not match the name of the site

Recently i started MS Outlook 2007 and tried connecting to a mailbox that is hosted on a mailbox server that is running Microsoft Exchange Server 2010 inside the local network. I received the following security warning “The name of the security certificate is invalid or does not match the name of the site.” During my…


Upgrading Exchange Server 2007 SP2 setup fails in Windows Server 2008 R2?

Recently i was discussing with one of my customer, he updated a issue relevant with his upgrade. Recently he downloaded the recent Exchange 2007 SP2 & tried upgrading to Exchange 2007 SP2 in an Active Directory forest that has only Windows Server 2008 R2 Domain Controllers. He tried to run the setup, but it fails…