Windows Core Networking

Windows Core Networking APIs and technologies such as Winsock, TCP/IP stack, WFP, IPsec, IPv6, WSK, WinINet, Http.sys, WinHttp, QoS, and System.Net
Posts
  • Windows Core Networking

    Network security made richer and simpler

    • 1 Comments
    What if you could filter IPsec encrypted traffic? What if you could easily filter both IPv4 and IPv6 traffic? What if you could write just a few lines of user-mode code to filter applications based on port, protocol and application ID? To do all...
  • Windows Core Networking

    What is NetDMA?

    • 2 Comments
    The NetDMA term was coined by the networking team to imply a DMA (Direct Memory Access) engine that is used for moving networking data in memory. During WinHEC I will present the NetDMA architecture but for now I will give you the problem that NetDMA...
  • Windows Core Networking

    Enabling Diagnostics for Network Performance Tuning

    • 0 Comments
    In Windows Vista Home Premium and Ultimate editions, Media Center will be available to all. Xbox 360 has integrated Media Center Extender (MCX) functionality, and a lineup of additional MCX devices will be comming soon from a number of partners, making...
  • Windows Core Networking

    Advances in Windows TCP/IP Networking

    • 1 Comments
    There are several bottlenecks that prevent high performance transfers end-to-end: host system on the sender and receiver, the network and of course the applications themselves. For Windows networking stack to deliver high throughput in gigabit networks and beyond, we have to alleviate some or all of these bottlenecks. ...
  • Windows Core Networking

    Network Access Protection

    • 5 Comments
    The world is becoming increasingly interconnected. This is great because it enables us to access our information on more devices, in more locations and at all times. However, these benefits require new approaches to access control. They require us to go beyond securing the network perimeter to securing the internal network and the hosts themselves. That’s what NAP is all about – providing integrated access controls across multiple layers in the network and on the hosts....
  • Windows Core Networking

    An Interview with Alireza Dabagh, NDIS development lead

    • 1 Comments
    Tell us about what you do in Windows. I’m NDIS development lead. I lead a team which works on NDIS and related components, and I also contribute to the architecture, coding and design of our components. How long have you been participating...
  • Windows Core Networking

    Get Ready for the WinHEC 2006 Guest Blogger Series

    • 0 Comments
    Starting Monday April 17th the WinHEC 2006 Guest Blogger Series begins right here on the WNDP blog The series is comprised of technical content from speakers and developers whose feature areas Microsoft will be highlighting during this year’s conference. ...
  • Windows Core Networking

    TLS enabled by default in IE 7.0 and WinINet

    • 8 Comments
    In order to provide a more secure experience, Microsoft is enabling TLS and extensions by default in Internet Explorer 7.0 and WinINet. Starting with Windows Vista, Schannel - the Security Support Provider (SSP), which implements TLS 1.0, will send “Extensions” during SSL/TLS protocol negotiation. ...
  • Windows Core Networking

    WinINet Support for Negotiate Auth to a Proxy Server in Windows Vista

    • 0 Comments
    By default WinINet supports the following authentication schemes: Negotiate, NTLM, Digest and Basic. However, in previous OS releases WinINet did not support Negotiate authentication to proxys , as it would not respond to a negotiate challenge from a...
  • Windows Core Networking

    Winsock and the new SDK Headers

    • 0 Comments
    As you may have noticed in the recent Vista CTP SDK, the Winsock headers have undergone some changes. First, instead of a couple monolithic files (winsock2.h and mswsock.h), they have been split into a number of smaller files for ease of maintenance as...
  • Windows Core Networking

    Simple .NET TCP Framing Example

    • 2 Comments
    Recently, Jon Cole from the System.Net QA team posted a great article in response to questions we've received on our .Net Networking Forum ( http://forums.microsoft.com/MSDN/ShowForum.aspx?ForumID=40&SiteID=1 ). His post can be found here: http:/...
  • Windows Core Networking

    WinINet ETW Tracing Support in Windows Vista

    • 3 Comments
    Program Manager for WinINet and WinHttp, Jonathan Silvera, discusses how to enable ETW tracing for Internet Explorer in Windows Vista....
  • Windows Core Networking

    TOS and DSCP

    • 7 Comments
    Some weeks ago I described 802.1p . It's a way to color traffic on your local network segment. If you have network equipment aware of this tag, you can get strict prioritization at these hops. Still, the tag is at layer-2 and not layer-3; your average...
  • Windows Core Networking

    What's next on the client HTTP stack front

    • 6 Comments
    http://www.microsoft-watch.com/article2/0,2180,1940567,00.asp Hachamovitch acknowledged Microsoft already is building the next two versions of IE. He declined to offer guidelines on delivery schedules or feature sets, other than to say one of the two...
  • Windows Core Networking

    CNet gives a quick look at Vista Networking

    • 0 Comments
    CNet wrote some nice words about Windows Vista, especially the QoS work: Networking Windows Vista will come with a completely reworked networking stack. The next-generation TCP/IP stack will work with IPv4 and IPv6, and will also support auto-tuning...
  • Windows Core Networking

    Update IE7 Beta 2 Preview available

    • 1 Comments
    There is an updated IE7 Beta 2 Preivew. Go get it! Also go visit the IE blog entry on the release . Update: The web page is updated but the underlining installer binary is older. I just confirmed the updated download. -- Ari Pernick
  • Windows Core Networking

    Introduction to Winsock Kernel (WSK)

    • 7 Comments
    Overview of WSK In Windows Vista a new transport-independent kernel mode Network Programming Interface (NPI) called Winsock Kernel (WSK) has been added. Using WSK, kernel-mode software modules can perform network communication using socket-like...
  • Windows Core Networking

    Winsock and Vista User Account Control

    • 2 Comments
    As you might have heard, Vista introduces User Account Control (UAC) which is a security feature that enables users to perform some tasks as non-Administrators. This has an effect on LSP writers as the Winsock functions to install and remove LSP entries...
  • Windows Core Networking

    Categorizing LSPs and Applications

    • 17 Comments
    In Windows Vista there is a new method for categorizing both Winsock Layered Service Providers (LSP) and applications themselves such that only certain LSPs will be loaded. There are a couple reasons for adding this functionality. One of the main reasons...
  • Windows Core Networking

    What is the problem with 802.1p?

    • 9 Comments
    With 802.1q and 802.1p (see the introduction for background), we have a means to color traffic on Ethernet. Hopefully, there's a network element (such as a switch) that can use this information to prioritize our traffic appropriately. So what can go wrong...
  • Windows Core Networking

    Introduction to 802.1p

    • 10 Comments
    In a previous post, I discussed traffic coloring. Modifications to a data packet such that the packet itself informs your network equipment that it requires handling different from normal packets such as best effort traffic. In other words, if you looked...
  • Windows Core Networking

    Dual Stack Sockets on Windows Vista

    • 2 Comments
    One of the changes in Windows Vista is that the IPv4 and IPv6 stacks are integrated -- on older OSes they were completely separate stacks. One benefit of this tighter coupling is the ability to create dual-mode sockets. That is, an application can create...
  • Windows Core Networking

    Winsock Connect and TCP SYN Attack Protection

    • 0 Comments
    TCP SYN attack protection has been available on Windows platforms since Windows 2000, but by default is turned off. This has changed for the Windows 2003 SP1 release as SP1 enables SYN attack protection by default (which is a good thing). However, once...
  • Windows Core Networking

    Connecting Your Digital Home

    • 3 Comments
    Having spent numerous hours working with analysts reviewing Media Center Extender products to help correct WiFi installation problems, I would like to spare other folks the pain of going through this process uninformed, and share the many ways to successfully...
  • Windows Core Networking

    QOS Fundamentals

    • 2 Comments
    In his previous posts, Gabe introduced networking's QoS team and touched upon some of the areas we're focused on. Over the next few months, we'll present some of the technologies we've been building. Before we look at these, I'd like to cover some of...
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