Blog - Title

  • .NET Blog

    Compatibility of .NET Framework 4.5

    • 88 Comments
    Fundamentals were a big part of our focus while building .NET 4.5. We divided fundamentals into seven areas called “tenets”. One of these tenets is compatibility. Today’s post is by Manish Agnihotri, a program manager who is driving compatibility across...
  • .NET Blog

    Introducing .NET Framework 4.5

    • 13 Comments
    Last week at the BUILD conference, we had the pleasure of announcing the next version of the .NET Framework and releasing a developer preview at the same time. We have so many new things in .NET 4.5 to discuss with our developer community – we’re...
  • .NET Blog

    Changes coming to ClickOnce applications running in the Internet Zone

    • 4 Comments
    We wanted to let you know that we’ll be changing the signature verification process for ClickOnce applications and WPF XAML Browser Applications (XBAPs) in an upcoming update.  This change will help users recognize when they’re running untrusted...
  • .NET Blog

    Hardening Server Applications

    • 2 Comments
    The Base Class Libraries team, the wider CLR team and Microsoft Research worked hard on this new technology and we are very proud to be able to share the news. Read the full article for details.
  • .NET Blog

    Is That the Right Version of Mscoreei.dll?

    • 9 Comments
    After installing .NET 4.0 or later you may notice something a little unusual about your .NET processes. Here is a partial list of the loaded modules of a simple “Hello World” executable compiled with the .NET 2.0 compiler. start end module name 60f00000...
  • .NET Blog

    In-Proc SxS and Migration Quick Start

    • 1 Comments
      This post is meant to help you understand what runtime in-process side-by-side is, how to think about it, how to use it, and how it affects application and component migration to the .NET 4 Runtime. This post is relevant to you if you use native...
  • .NET Blog

    NGen: Walk-through Series

    • 2 Comments
    The CLR Code Generation team blog has a series of new posts featuring hands-on style content around how to use the NGen technology and how to measure performance benefits from it. You can find the series here .
  • .NET Blog

    Connect

    • 19 Comments
    As hopefully most of you know, Microsoft has a site called Connect where customers can log bugs and suggestions ( http://connect.microsoft.com/ ). Issues for .NET can be found in the Visual Studio and .NET Framework feedback category ( http://connect...
  • .NET Blog

    Announcing a new CLR Team Codeplex Project: CLR Runtime Activation

    • 5 Comments
    This Codeplex site will feature demos, samples, and helper libraries related to the selection and activation of the CLR: http://clractivation.codeplex.com/ With .Net Framework 4 and VS 2010 the new ability to load multiple versions of the runtime has...
  • .NET Blog

    Sharing Silverlight Assemblies with .NET Apps

    • 34 Comments
    At the recent PDC, Scott Guthrie announced in his Silverlight 4 keynote that we had implemented a new feature, to enable developers to share certain assemblies between Silverlight and .NET. There are many differences between Silverlight and full .NET...
  • .NET Blog

    How to Make the Most of Your .NET Server Code

    • 4 Comments
    One of our team’s field engineers recently sent a link to a Channel 9 video: Steve Michelotti of e.magination on High Performance Web Solutions . This company built a 64-bit web server that handles over 3 billion transactions a day and guarantees a 250...
  • .NET Blog

    Automatically Capturing a Dump When a Process Crashes

    • 9 Comments
    I recently received the following question from a customer: “During our test runs (which might run for hours), if a process crashes, we’d like to create full memory dumps for later diagnosis. Can I configure the machine to do this automatically...
  • .NET Blog

    Five Myths about Managed Code

    • 12 Comments
    My name is Immo Landwerth and I was a Program Manager intern this year in the CLR team. In this blog post I am not going to showcase any of the fantastic features that will ship with .NET 4.0 – my colleagues in the CLR team know them much better and already...
  • .NET Blog

    IL Stub Diagnostic Tool

    • 3 Comments
    The IL Stub Diagnostic Tool enables real-time inspection of the contents of IL stubs. Developers now have a powerful tool to troubleshoot issues in interop marshalling, Introduction Jesse posted a great blog talking about the concept, history, and improvements...
  • .NET Blog

    The good and the bad of exception filters

    • 15 Comments
    Every so often we get asked questions about the CLR’s support for exception filters. Why do some languages support them and others do not? Is it a good idea to add them to my new language? When should I use a filter vs. catch/rethrow? Etc. I’ll try to...
  • .NET Blog

    Improvements to Interop Marshaling in V4: IL Stubs Everywhere

    • 4 Comments
      When the CLR needs to transition between managed and native code – usually because of P\Invoke or COM interop – we need to generate marshaling stubs (little chunks of code) to handle that specific call and transform the data from managed to native...
  • .NET Blog

    CLR 4: Making the AssemblyResolve event more useful

    • 4 Comments
      In the introductory post on CLR Binder (‘ Understanding the Binder – Part 1 ’), we listed the set of steps that the CLR Binder follows, in order to locate an assembly and bind to it. On reading this, an obvious question comes to mind. What happens...
  • .NET Blog

    Enabling CAS Policy Compatibility Mode for a Project

    • 1 Comments
    If you’re migrating a VS project over to VS 2010 Beta1 and you are calling code that is passing Evidence objects to the runtime expecting security policy resolution, or if you’re using a permission Deny , you may run into the following exception: NotSupportedException...
  • .NET Blog

    Getting more information than the exception class provides

    • 9 Comments
    We recently had a question about how to get more information than an exception’s type provides. The developer was trying to copy a file and didn’t know why the copy was failing. File copies can fail for many reasons, almost all of them what Eric Lippert...
  • .NET Blog

    Tail Call Improvements in .Net Framework 4

    • 1 Comments
    Grant Richins has a post on the CLR Code Generation team blog that covers the work done to improve the x64 JIT to honor the "tail." instruction prefix, thereby making functional languages like F# more viable. You can find the full post here .
  • .NET Blog

    What's New for .Net Framework Security

    • 1 Comments
    Shawn Farkas, CLR security developer, has started a cool series of posts on what’s new in .NET Framework 4 security. If you’re doing any work with or have scenarios involving partially trusted code, you’ll want to take a look. Topics include sandboxing...
  • .NET Blog

    New Security Model: Moving to a Better Sandbox

    • 9 Comments
    For .Net Framework 4, we decided to remove the dependency on caspol and the policy levels and make things simpler. With this change, the default grant-set for assemblies is now FullTrust unless the host (such as InternetExplorer) decides to load them...
  • .NET Blog

    In-Process Side by Side Part 2 - Common in-proc SxS scenarios

    • 6 Comments
    Update: The information in this blog post applies to pre beta-1 behavior and is not applicable to beta 2 and RTM. We will have more posts and documentation on this subject as we get closer to RTM. This section covers the most common in-process side...
  • .NET Blog

    In-Process Side by Side (Part1)

    • 17 Comments
    One of the new features in CLR 4 is In-Process Side-by-side (Inproc SxS) – a feature that lets you use multiple versions of .NET in the same process. For applications that use add-ins (particularly COM add-ins), in-proc SxS lets us provide a level of...
  • .NET Blog

    Improvements to NGen in CLR 4

    • 0 Comments
    Surupa Biswas has a post in the CodeGen team blog on new features in NGen coming out as part of CLR 4. The post covers NGen SxS (that's side-by-side) and multi-proc NGen, and goes into detail on the work that went into making Targeted Patching possible...
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