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…


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…


Understand more about Office.js, it’s add-in runtime environment and Internet Explorer protected mode!!

In addition to the earlier blog post, you can refer the following: – Microsoft Office addins using the Apps for Office platform are designed to run in isolation, using a low rights sandbox. – Several features, such as the task pane view, use web views provided using Internet Explorer APIs.  – To ensure these components…


Debug: Outlook office addin (apps for office) fails to load, errors out

Recently one of my developer customer reported that he designed a new Outlook addin (apps for office) which fails to load and it throws the error “This app could not be started. Close this dialog to ignore the problem or click “Restart” to try again.” During troubleshooting we noticed that this issue occur because protected…

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Virtual Classroom : Building Web Apps with ASP.NET Jump Start

Hi there, You can join this Jump Start session provided by Microsoft Virtual Academy – it’s tailored for experienced application developers interested in leveraging ASP.NET and Visual Studio 2012 to offer modern apps that target modern browsers. Two of Microsoft’s most seasoned ASP.NET speakers, Scott Hanselman and Jon Galloway, will provide an accelerated introduction to…

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An insight @ Internet Explorer 10 Platform Preview

IE10 – Platform Preview? IE10 Platform Preview is released periodically to give web developers, designers, and enthusiasts an advanced look at what’s to come in the next major release of Internet Explorer. Want to try IE 10 Platform Preview? If you want to download and try Internet Explorer Platform Preview, then I would suggest you…

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MIX 11: Hardware-accelerated HTML5, IE9 & Mango

Last March 2010 @ MIX 10, we (MS) announced Hardware-Accelerated HTML5, Pushes Boundaries on Web and Cloud Development. Also MS released first platform preview for Windows Internet Explorer 9, highlights commitments to jQuery, OData, expanded support for HTML5, hardware-accelerated graphics and text, and a new JavaScript engine. Together these allow developers to use the same…


Security/Privacy: How safe are you while you browse web?

Do you know the new feature “Tracking Protection” of Internet Explorer? It is the new privacy feature in Internet Explorer 9 designed to help keep third-party websites from tracking your Web behavior. With Tracking Protection, consumers can filter content in a page that may have an impact on privacy. Here you see a stock ticker,…


While try to log into an Exchange 2003 mailbox by using WebDAV program, you receive a 401 status code in IE

When the user tried to access a Microsoft Exchange Server 2003 mailbox by using a program that uses Web Distributed Authoring and Versioning (WebDAV), Internet Explorer throws 401 HTTP status code. During investigation we found that we may not be able to access the mailbox. Also we notice that the mailbox has never received an…


Monitoring Event Sink # 31: Why Exchange Explorer doesn’t work ?

One of my customer reported that in one of his machine, the exchange explorer (available part of Exchange SDK) stop responding. But the same work in his rest of the machines. During the research, we found the following known issues (stop responding, doesn’t display etc) with exchange explorer: Cannot set member server schema scope using…