Can’t play PlayReady DRM video after installing Silverlight Update 5.1.31010

On December 9 Microsoft released Silverlight version 5.1.31010.  This version has been pulled and replaced with 5.1.30514. If you experience errors when trying to view DRM protected videos on sites like Netflix, Amazon Prime, or Sky, please check to see if you have Silverlight version 5.1.31010 installed and if so, uninstall and reinstall Silverlight. Uninstall…


Silverlight Support Roadmap

We receive a lot of questions about Silverlight support roadmap. The purpose of this post is to consolidate few relevant links to answer most of your questions. Microsoft will continue to support Silverlight 5 until 10/12/2021 –see here: http://support.microsoft.com/en-us/lifecycle#gp/lifeDevTool– more details on our support policy are here http://support.microsoft.com/ph/12929 Silverlight 5 supports the browser versions listed here:…

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How to set hostname during SSL binding in IIS7

Recently I have talked to few customers who were looking for a way to add hostname on SSL binding. They were using IIS7 and unable to use the IIS Manager UI for it. In fact, IIS Manager “Add Site Binding” UI had the “Host name” field greyed out! Here is how to resolve it. Note:…

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Silverlight: How to remove Mac OS X Mavericks Safari 6.1 sandbox restrictions for Silverlight enabled websites

By default, Mac OS X Mavericks / Safari 6.1 and later now load plugins like PDFs, Flash, Silverlight, and Java in a sandbox to protect users from possible exploits in the plugins, but can also prevent those sites from working as designed. See “Added security for plug-ins” On  http://www.apple.com/safari/”PDFs and widely used plug-ins like Adobe Flash…


How to authenticate with ADSF in Silverlight 5 Application

How to authenticate with ADSF in Silverlight 5 Application This article uses sample from http://hashtagfail.com/post/11094642160/wcf-wif-silverlight-active-federation as start point and gives an example how to modify that sample to setup ADSF as STS token service for Silverlight 5 to authenticate against. ADSF returns saml token to Web Application that hosting SL5 application, and is decrypted and then…

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What are required for Silverlight Application that requires Elevated trust

For In-Browser and Out-Of-Browser (OOB) Silverlight application, there is an option “Require Elevated Trust” when you create and build Silverlight Application. This options requires the following: 1. set registry to allow Elevated Trust on clients’ machine: Key path for 32-bit computers:HKEY_LOCAL_MACHINE\Software\Microsoft\Silverlight\ Key path for 64-bit computers:HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Silverlight\ name: AllowElevatedTrustAppsInBrowser Value: 1   2. Sign the xap with…

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How to manually clean up a broken Silverlight installation in Windows 8

If you are having trouble with installing, uninstalling or reinstalling Silverlight on your Windows 8 machine, then these steps will likely to help you to perform a clean uninstall of Silverlight from your Windows 8 machine: Steps to manually clean up a broken Silverlight installation in Windows 8: Download Fixit20104 msi from here: Close all…

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Fixing a Corrupted Silverlight Installation

Recently I have dealt with few cases where a Silverlight app keeps on crashing on few machines while it works fine on others regardless of browser versions.  As you can sense, this is likely a machine specific issue and something to do with the installed Silverlight runtime. The solution may seem easy, just uninstall via Control Panel…

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Internet Explorer continuously prompts for installing Silverlight when it is already installed

If you keep being prompted to install Silverlight when it is already installed, then you are at the right place (hopefully!). There can be different reasons for the failure. Here I am listing some of the most common causes and their corresponding solutions: IE Security Enhancement (This is applicable only for the Server version of…

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