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.NET Aspire 9.3 is here and enhanced with GitHub Copilot!
.NET Aspire 9.3 is the biggest release of .NET Aspire yet, with the introduction of GitHub Copilot directly into the .NET Aspire Dashboard, updates for integrat...
Latest posts

Announcing the EventSource NuGet Package – Write to the Windows Event Log

We are announcing the EventSource NuGet package, which enables fast app tracing to the Windows Event Log, including in production. This post was written by Cosmin Radu, a software developer on the .NET Runtime team We know that you want to build high-quality software. That can be a challenging task if your desktop or web app interacts with users in complex ways or reads unstructured input, as examples. An important quality tool is instrumentation, which makes diagnosing functionality and performance problems much easier. Starting with the .NET Framework 4.5, you can use the System.Diagnostics.Tracing.Event...

Building apps with the .NET Framework 4.5.1 Preview in Visual Studio 2012

Update (2017): See .NET Framework Releases to learn about newer releases. This post describes how to add targeting support for the .NET Framework 4.5.1 in Visual Studio 2012. It was written by Rich Lander, who worked on the original multi-targeting support in Visual Studio 2010. Here’s the question: You can. Visual Studio 2013 preview provides built-in support for targeting the .NET Framework 4.5.1 Preview, but you can also build apps that target the .NET Framework 4.5.1 using Visual Studio 2012. Here’s the short answer: The .NET Framework 4.5.1 Preview includes the .NET runtime, but doesn’t include the fi...

Building apps with the .NET Framework 4.5.1 Preview in Visual Studio 2012

Update (2017): See .NET Framework Releases to learn about newer releases. This post describes how to add targeting support for the .NET Framework 4.5.1 in Visual Studio 2012. It was written by Rich Lander, who worked on the original multi-targeting support in Visual Studio 2010. Here’s the question: You can. Visual Studio 2013 preview provides built-in support for targeting the .NET Framework 4.5.1 Preview, but you can also build apps that target the .NET Framework 4.5.1 using Visual Studio 2012. Here’s the short answer: The .NET Framework 4.5.1 Preview includes the .NET runtime, but doesn’t in...

Documentation updates for .NET 4.5.1

This post describes the changes that we’ve made to .NET Framework documentation for the .NET Framework 4.5.1. It was written by Cheryl Simmons, who works on the .NET Framework documentation team. In the recent preview release of the .NET Framework 4.5.1, we changed the way we update the documentation for the .NET Framework, refreshed the content to support the release, and made additional feedback-driven updates and fixes. This post describes the changes. Structural changes and markup We’ve tried something new for this release of the .NET Framework. You will see in-place updates and additions to the .NET F...

Documentation updates for .NET 4.5.1

This post describes the changes that we’ve made to .NET Framework documentation for the .NET Framework 4.5.1. It was written by Cheryl Simmons, who works on the .NET Framework documentation team. In the recent preview release of the .NET Framework 4.5.1, we changed the way we update the documentation for the .NET Framework, refreshed the content to support the release, and made additional feedback-driven updates and fixes. This post describes the changes. Structural changes and markup We’ve tried something new for this release of the .NET Framework. You will see in-place updates and additions to the .NET F...

Documentation updates for .NET 4.5.1

This post describes the changes that we’ve made to .NET Framework documentation for the .NET Framework 4.5.1. It was written by Cheryl Simmons, who works on the .NET Framework documentation team. In the recent preview release of the .NET Framework 4.5.1, we changed the way we update the documentation for the .NET Framework, refreshed the content to support the release, and made additional feedback-driven updates and fixes. This post describes the changes. Structural changes and markup We’ve tried something new for this release of the .NET Framework. You will see in-place updates and additions to the .NET F...

Wondering why mscorsvw.exe has high CPU usage? You can speed it up.

This post was written by Rich Lander, a Program Manager on the .NET Framework Team. It was written for people who want to understand why mscorsvw.exe is running on their machines and want to know how to speed it up. Have you noticed that your machine is slowing down, and you’ve looked in Task Manager to find that mscorsvw.exe is the culprit? If so, this post will help you resolve those performance issues. Mscorsvw.exe is a component of Windows, and is otherwise known as the .NET Framework Optimization Service. It optimizes your machine to launch apps faster. Most of the time, users do not notice mscorsvw. ...

Got a need for speed? .NET apps start faster.

This post was written by Rich Lander, who works as a Program Manager on the .NET Framework. He worked on AutoNGEN for Windows 8. This post focuses on how technologies such as Native Image Generator (NGEN), the .NET Framework Optimization Service (mscorsvw), AutoNGEN, and compilation in the cloud have improved the startup performance of .NET apps. (If you want to speed up mscorsvw on your machine, read Wondering why mscorsvw.exe has high CPU usage? You can speed it up.) Use any apps? Pretty much all the time, right? You probably expect most apps, whether they check the weather or a stock price, to start up fast—yo...

Wondering why mscorsvw.exe has high CPU usage? You can speed it up.

This post was written by Rich Lander, a Program Manager on the .NET Framework Team. It was written for people who want to understand why mscorsvw.exe is running on their machines and want to know how to speed it up. Have you noticed that your machine is slowing down, and you’ve looked in Task Manager to find that mscorsvw.exe is the culprit? If so, this post will help you resolve those performance issues. Mscorsvw.exe is a component of Windows, and is otherwise known as the .NET Framework Optimization Service. It optimizes your machine to launch apps faster. Most of the time, users do not notice mscorsvw. If ...