---
title: "Debug Into the .NET Framework Source Code"
url: "https://osherove.com/blog/2007/11/19/debug-into-the-net-framework-source-code.md"
canonical: "https://osherove.com/blog/2007/11/19/debug-into-the-net-framework-source-code.html"
published: "2007-11-19T14:23:07"
updated: "2007-11-19T14:23:07"
tags: [".NET"]
author: "Roy Osherove"
description: "Best thing I've read in a while about VS 2008 (from Scott GU about the release of VS 2008 ): \" Browsing the .NET Framework Library Source using Visual Studio As I blogged a few weeks ago, we will be releasing a…"
usage: "Licensed under CC BY 4.0 — reuse, quote and adapt with attribution (Roy Osherove, link to the original page)."
license: "https://creativecommons.org/licenses/by/4.0/"
---

# Debug Into the .NET Framework Source Code

By Roy Osherove November 19, 2007 In [.NET](https://osherove.com/blog/category/net)

**Historical article** · Originally published November 19, 2007; technical details may be outdated.

Best thing I've read in a while about VS 2008 (from [Scott GU about the release of VS 2008](http://weblogs.asp.net/scottgu/archive/2007/11/19/visual-studio-2008-and-net-3-5-released.aspx)):

"**Browsing the .NET Framework Library Source using Visual Studio**

> As I [blogged](http://weblogs.asp.net/scottgu/archive/2007/10/03/releasing-the-source-code-for-the-net-framework-libraries.aspx) a few weeks ago, we will be releasing a reference version of the .NET Framework library source code as part of this release.  Visual Studio 2008 has built-in debugger support to automatically step-into and debug this code on demand (VS 2008 can pull down the source for the appropriate .NET Framework library file automatically for you).

> We are deploying the source servers to enable this right now, and will be publishing the steps to turn this feature on in the next few weeks. "

Awesome.

## More in .NET

[All posts in .NET](https://osherove.com/blog/category/net)

- Jan 15, 2008

    ### [BitDiffer, anyone?](https://osherove.com/blog/2008/1/15/bitdiffer-anyone.html)

- Nov 29, 2007

    ### [IL Debug Visualizer for Compiled Lambda Expressions, MethodBase and DynamicMethod](https://osherove.com/blog/2007/11/29/il-debug-visualizer-for-compiled-lambda-expressions-methodba.html)

- Nov 17, 2007

    ### [Mocking LINQ Queries, Extension methods and Anonymous Types](https://osherove.com/blog/2007/11/17/mocking-linq-queries-extension-methods-and-anonymous-types.html)

- Nov 15, 2007

    ### [\[Security\] Microsoft unveils Code Protection suite of tools](https://osherove.com/blog/2007/11/15/security-microsoft-unveils-code-protection-suite-of-tools.html)


---

## About the author

**Roy Osherove**: Senior Solutions Architect at AWS working on AI for production and AI-driven development; author of The Art of Unit Testing and Elastic Leadership, with about 20 years of consulting and training on unit testing, TDD, team leadership and continuous delivery.

### Sites

- [RobotPaper](https://robotpaper.ai/): This blog: AI patterns and anti-patterns, AI and coding agents, and engineering leadership.
- [osherove.com](https://osherove.com): Roy's personal site. Author of The Art of Unit Testing and Elastic Leadership; consulting and training on unit testing, TDD, team leadership and continuous delivery, plus about 20 years of blog posts.
- [The Art of Unit Testing](https://www.artofunittesting.com): The Art of Unit Testing, 3rd Edition (Manning): readable, maintainable, trustworthy unit tests, plus TDD workshops in C#, JavaScript, Java and Kotlin.
- [5whys.com](https://www.5whys.com): Roy's writing on software team leadership: self-organizing teams, surviving chaos, learning mode and the Elastic Leadership model.
- [Pipeline Driven](https://pipelinedriven.org): Continuous delivery and DevOps practices: build patterns, pipeline-friendly testing, DevOps metrics and enterprise DevOps.
- [Elastic Leadership](https://www.elasticleadership.com): Elastic Leadership, Roy's framework for software team leaders (survival, learning and self-organizing modes).

### Social

- X: https://x.com/royosherove
- LinkedIn: https://www.linkedin.com/in/osherove/

### Contact

- Contact form: https://forms.gle/jQSx5KoXvrVA1JCK7

### License

Licensed under CC BY 4.0 — reuse, quote and adapt with attribution (Roy Osherove, link to the original page). License: https://creativecommons.org/licenses/by/4.0/