
Microsoft Silverlight is a popular software development platform that allows developers to create rich, interactive web applications. It's compatible with a wide range of operating systems, including Windows, macOS, and Linux.
To run Silverlight, you'll need to meet certain system requirements, including a 1.5 GHz or faster processor, 1 GB of RAM, and a graphics card that supports DirectX 9.0 or later.
Silverlight can be updated through the Microsoft Update Catalog, which provides a list of available updates and allows you to download and install them manually.
Release History
Microsoft Silverlight has a long and complex release history. The first Community Technology Preview (CTP) was released in 2006, with version number 1.0. The first Release to Web (RTW) was in 2007, with version number 1.0.20816.
The first Service release was in 2007, with version number 1.0.21115.0. This was followed by another Service release in 2008, with version number 1.0.30109.0.
Microsoft Silverlight 2.0 was released in 2008, with version number 2.0.30226.2. This was the first beta version of the software. The first RTW version of Silverlight 2.0 was released in 2008, with version number 2.0.31005.0.
Here's a brief overview of the major releases:
Note that there were many other releases, including Service packs, Security Updates, and General Distribution Releases (GDRs).
Installation and Troubleshooting
Installing Microsoft Silverlight is a straightforward process. You can start by running the installation file and agreeing to the terms and conditions. Optionally, you can customize the installation according to your preferences.
To ensure a smooth installation, download the file from the official website, double-click the downloaded file to start the installation, and click "Agree" when prompted to accept the terms and conditions.
Restarting your device once the installation is done is crucial for the changes to take effect. You may be asked to choose extra features or modify settings during the installation, so be sure to review these options thoroughly before proceeding.
If you encounter common installation issues, consider checking compatibility with your operating system and web browser, clearing cache and temporary files, and looking for conflicting software.
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Installation and troubleshooting can be a challenge, but it's not impossible. The key is to understand the common issues that can arise and know how to resolve them.

Incorrect installation of the software can lead to a range of problems, including crashes and errors. The solution is to reinstall the software and ensure that it's installed correctly.
A common issue with hardware installation is loose connections, which can prevent the device from functioning properly. Double-checking the connections can resolve this issue.
System updates can sometimes cause conflicts with existing software, resulting in errors and crashes. It's essential to update the software in a controlled environment to minimize the risk of issues.
In some cases, the issue may be with the hardware itself, and the solution is to replace the faulty component. This can be a more complex process and may require professional assistance.
[Common Installation Troubleshooting]
If you're experiencing issues with Microsoft Silverlight installation, it's essential to ensure compatibility with your operating system and web browser. This can make all the difference in resolving common problems.
To troubleshoot common installation issues, clear cache and temporary files, as this can often resolve issues related to corrupted or outdated data. Always clear your cache and temporary files before reinstalling or repairing Microsoft Silverlight.
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Check for conflicting software, as this can interfere with the installation process. If you have other software that's using the same resources, it may cause problems.
Consider reinstalling or repairing Microsoft Silverlight if none of the above steps resolve the issue. According to Statista, as of March 2020, roughly half of desktop browsers in North America still support Silverlight, so it's likely that you'll be able to resolve the issue.
Here are some common installation issues and their possible solutions:
Legacy and Deprecation
Microsoft Silverlight is being phased out due to its outdated technology and the rise of newer, more compatible frameworks like HTML5.
The last major version of Silverlight was released in 2011, and since then, it has been replaced by faster and more widely compatible options.
Silverlight will no longer be supported by Microsoft after October 12, 2021, when the last browser that still supports it, Internet Explorer 11, drops support.
This means that Microsoft will stop offering the Silverlight plugin installer for download after this date, making it clear that it's time to move on from this technology.
IE 11 has a market share of about 1.45%, which is shrinking every year, making it no longer practical to continue supporting Silverlight.
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Legacy systems can be a double-edged sword. They provide a sense of familiarity and stability, but they can also hold you back from adopting newer, better technologies.
Microsoft Silverlight (64-bit) is a great example of this. It's only useful for strict legacy needs, where a compatible browser is guaranteed.
New builds should favor standards-based DASH or HLS on HTML5 players to reduce operational risk. This approach keeps performance and protection goals intact, and aligns teams with mainstream, well-supported tooling.
Why Is It Being Deprecated?
Silverlight is being deprecated because it's been superseded by faster, better, and more widely compatible frameworks like HTML5.
The last major version of Silverlight was released in 2011, which is a long time ago.
Microsoft will stop offering the Silverlight plugin installer for download after October 12, 2021, which is a significant deadline.
IE 11, the last browser that still supports Silverlight, has a market share of about 1.45%, a number that's shrinking every year.
It simply no longer makes sense to keep supporting Silverlight, especially when its market share is so low.
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Software and Requirements
To install Microsoft Silverlight, you'll need Windows 7 or later, or Mac OS X 10.4.11 or later. You must also have the most recent version of a web browser, such as Internet Explorer, Safari, Firefox, or Chrome.
Make sure your .NET Framework is up-to-date on Windows, and Mono 1.2.6 or later is required on Mac. This will ensure Silverlight runs smoothly.
Some features may require extra hardware and software, like a graphics card that supports DirectX 9.0c or later with Shader Model 2.0 or higher for HD video playback.
Here are the minimum software requirements for Microsoft Silverlight:
- Windows 7 or later
- Mac OS X 10.4.11 or later
- Most recent version of a web browser (Internet Explorer, Safari, Firefox, or Chrome)
- .NET Framework up-to-date on Windows
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Silverlight 4 was released on April 15, 2010, along with tools for developers.
One of the key features of Silverlight 4 is its support for various browsers, including Google's Chrome browser.
You can now use a webcam and microphone in your Silverlight applications, which is especially useful for video conferencing and other multimedia projects.
Printing support is also available, making it easier to create documents and reports from within your Silverlight applications.
The improved mouse support in Silverlight 4 includes right button support and mouse wheel support, which can enhance the overall user experience.
New notification support allows you to display messages to end users, keeping them informed about important updates or changes.
Some of the new and enhanced controls in Silverlight 4 include a RichTextBox and an enhanced DataGrid control.
Implicit theming of controls is also supported, making it easier to customize the look and feel of your Silverlight applications.

You can now render HTML inside Silverlight using hosted browser support, which can be useful for creating hybrid applications.
WCF data layer enhancements and localization enhancements with bi-directional text are also part of Silverlight 4.
The Managed Extensibility Framework is supported, which can help you extend the functionality of your Silverlight applications.
Deep Zoom performance enhancements and content protection for H.264 are also available in Silverlight 4.
For out-of-browser Silverlight applications with "trusted" status, you can enable full keyboard access while running in full screen mode.
Additionally, you can access a user's local document folder and use local COM objects in your Silverlight applications.
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Silverlight 5 was a significant update that brought several exciting features to the table. It was announced at the Silverlight Firestarter event on December 2, 2010, and the final version was released on December 9, 2011.
One of the key features of Silverlight 5 was its support for GPU accelerated video decoding, which improved the overall performance of video playback. This feature was a game-changer for developers who were working on video-intensive applications.
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Another notable feature was the built-in 3D graphics support, which allowed developers to create more immersive and engaging experiences for their users. This feature was a major step forward for Silverlight and paved the way for more complex and interactive applications.
Variable speed playback of media content with automatic audio pitch correction was also introduced in Silverlight 5, which gave developers more control over the playback experience. This feature was particularly useful for applications that required precise control over audio playback.
Here are some of the key features of Silverlight 5:
- Supports GPU accelerated video decoding
- Built-in 3D graphics support
- Variable speed playback of media content with automatic audio pitch correction
- Supports faster application startup
- Provides 64-bit browser support
These features, among others, made Silverlight 5 a powerful and versatile platform for developers. Its improved performance and feature set made it an attractive choice for a wide range of applications.
Software Requirements
To install Microsoft Silverlight, you'll need to meet certain software requirements. Windows 7 or later, or Mac OS X 10.4.11 or later is required.
You'll also need the most recent version of a web browser, such as Internet Explorer, Safari, Firefox, or Chrome. Make sure your .NET Framework is up-to-date on Windows, and for Mac, you'll need Mono 1.2.6 or later.
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Some features may require extra hardware and software, like HD video playback, which needs a graphics card that supports DirectX 9.0c or later with Shader Model 2.0 or higher.
Here's a quick rundown of the minimum software requirements:
What's Needed to Update Software Alternatively?
Updating software to an alternative to Silverlight requires porting your applications to a new framework and testing it extensively to ensure compatibility and stability, which takes development time.
You might not have the time to spare for this, but hiring a custom software development firm can help.
They will have the expertise to port your old Silverlight code to a new framework, and work with you to discover your software's needs.
A source code upgrade plan can produce high-performance software that's fully tested within reasonable deadlines.
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