Developer Tools

    Thank you for downloading

    • .NET Framework 1.0 Service Pack 3 SYSTEM.WEB.DLL and MSCOREE.DLL Security Update for Windows 2000, Windows Server 2003, Windows XP (excluding Media Center Edition and Tablet PC Edition), and Windows Vista

      If your download does not start after 30 seconds, Click here
          1. Click the Download button on this page to start the download, or select a different language from the Change language drop-down list and click Change.
          2. Do one of the following:
            • To start the installation immediately, click Run.
            • To save the download to your computer for installation at a later time, click Save.
            • To cancel the installation, click Cancel.

    Popular downloads

    Loading your results, please wait...

    Free PC updates

    • Security patches
    • Software updates
    • Service packs
    • Hardware drivers

    Microsoft suggests

    Download Visual Studio Community 2013 for free.
    Download Visual Studio Community 2013 for free
    Everything you need to create great apps.
    Download now