Office.js debug: Office add-in throws “Sorry, we couldn’t load the app because your browser version is not supported”

One of the ISV pointed out that they see the following error with Office Add-ins that they develop. It throws error “Sorry, we couldn’t load the app because your browser version is not supported. Click here for a list of supported browser versions.” During the investigation we noticed the end user’s browser (Internet Explorer) is…

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Office Debug: Office add-ins are not displayed correctly in Outlook

Recently one of the ISV app developer reported that after they update Microsoft Outlook to version 1809 (build 10827.20181) or later versions, data from some Office add-ins may not be displayed correctly or may be missing from the user interface of the add-in within Outlook. Specifically in their case, they used IE Control hosted in…

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Office.js web add-in throws HTTP 401 Unauthorized

One of my dev customer, created Outlook Web add-in (using Office.js/JavaScript) and tried calling EWS call (mailbox.makeEWSRequestAsync method). It throws HTTP error 401 for mailbox.makeEWSRequsetAsync() method. They noticed the error or behaviour when they tested with Outlook on the Web and Outlook Web Access for devices. The API call throws, the following HTTP error: “The…

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Office Developer: Difference between Office Web addin vs COM/VSTO addin

COM or VSTO add-ins are earlier Office integration solutions that run only on Office for Windows. The major difference what you see is that COM addins will be running in the user device or in the Office Client. The new Office Add-ins don’t involve code that runs on the user’s device or in the Office…


Developer: How to use Github for Windows users?

If you’re a Developer who is curious about Git and GitHub, be sure to check out this GitHub training. Join experts Briana Swift and Jeremy Foster for a look at basic Git and GitHub concepts, and see why millions of Developers use the fast and flexible dev process fostered by GitHub. Take a look at…

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Debug: Collecting HTTP/HTTPS traffic using Fiddler Web Debugger tool

As you aware that the Fiddler tool helps you debug web applications by capturing network traffic between the Internet and test computers. The tool enables you to inspect incoming and outgoing data to monitor and modify requests and responses before the browser receives them. So this post provides the steps for capturing HTTP/HTTPS traffic with…


Exchange Server 2016 hands-on demo videos

We’ve got some great Exchange Server 2016 resources that I wanted to share, including some hands-on demo videos that I think you’ll enjoy. Collaboration updates – Outlook, Exchange, SharePoint, Onedrive: Exchange Server 2016 Smarter inbox – Search and customization updates: Exchange Server 2016 & Outlook on the go – Mobile, browser and productivity updates: Exchange…


Mac meets PC: Microsoft Office 2011 for Mac

  Microsoft launches Office 2011 for Mac today, bringing Mac users the latest versions of the company’s productivity software. Per Press pass, two editions will be available: Customers can choose between Microsoft Office for Mac Home and Student 2011 and Microsoft Office for Mac Home and Business 2011. The release is the latest effort from…


Receive Server Error while browsing the Exchange EWS or Autodiscover sites

Recently i received the following error while try to browse the following /autodiscover/Autodiscover.xml">https://<servername>/autodiscover/Autodiscover.xml  or /ews/exchange.asmx">https://<servername>/ews/exchange.asmx: Could not load file or assembly ‘Microsoft.Exchange.Diagnostics, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35’ or one of its dependencies. The system cannot find the file specified. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace…


Next Gen. Cloud Productivity: Microsoft Office 365

Microsoft Corp. today announced Microsoft Office 365, the company’s next generation in cloud productivity that brings together Microsoft Office, SharePoint Online, Exchange Online and Lync Online in an always-up-to-date cloud service. Office 365 makes it easier for millions more organizations to get and use Microsoft’s award-winning business productivity solutions via the cloud. With Office 365,…