Universal Windows Platform

Welcome to the Universal Windows Platform Developer Feedback site. This site provides the Windows developer community with a channel for feedback on the following topics:

  • Windows developer platform (APIs, runtimes, and controls)
  • Dev Center (dashboard, reporting/analytics, submission process, etc.)
  • Microsoft Store

Your suggestions will be reviewed by the Windows platform developer team to help with planning ideas and to better understand how developers are using the platform.

What this forum is not intended to cover or capture:

  • Windows consumer suggestions: Use the Windows Feedback Hub app built directly into Windows 10
  • Documentation on docs.microsoft.com: Sign in at the bottom of the page to give documentation feedback via Github
  • Visual Studio / .NET: Use the Visual Studio UserVoice site

If you’re new to UserVoice, two things to keep in mind are (a) List items (and item rankings) represent community interest in features, and not the actual priority list for the product team; and (b) Suggestions made using this forum will be moderated if they do not actually represent a feature request (or if too many different ideas are included in one suggestion).

How can we improve the Windows dev platform?

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  1. Allow TCP connections to survive suspend/resume

    Perhaps as a result of its desktop heritage, or otherwise, Windows for as long as I have known it has eagerly disconnected TCP connections when either the corresponding route or network interface is known by the system to have gone away. On researching this issue recently, it seems to be related to network interfaces entering an offline state.

    This behaviour makes a lot of sense on desktop machines, where early feedback to an application and its user allows the problem to be responded to more promptly: no hung connections that will never return, blocked threads, etc.

    However, as a developer…

    2 votes
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      1 comment  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
    • WebAuthenticationBroker should use Edge as IE is going out of support

      WebAuthenticationBroker is becoming obsolete as websites like GitHub are dropping support of the IE browser.

      See example here:
      https://twitter.com/DMelidonis/status/983380820508504064

      13 votes
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        1 comment  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
      • Performance Issue in Windows.Web.Http.HttpClient

        Posted in stackoverflow - https://stackoverflow.com/questions/52947707/performance-issue-in-windows-web-http-httpclient. I have been using the Windows.Web.Http.HttpClient for my API Requests. My HttpClient is a singleton. I analyzed the resource timing for my API calls with the Network Profiler in Visual Studio. In the Timings split-up, I see that the Waiting (TTFB) part takes the most time (about 275ms. Sometimes it goes as high as 800ms).

        As per this https://developers.google.com/web/tools/chrome-devtools/network-performance/understanding-resource-timing, waiting time is the Time spent waiting for the initial response, also known as the Time To First Byte. This time captures the latency of a round trip to the server in addition to…

        1 vote
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          0 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
        • DNS-SD _services._dns-sd._udp.local. (find all service types) does not work

          DNS-SD _services._dns-sd._udp.local. (find all service types) does not work.

          I am using Microsoft's DNS-SD which aims to implement the Zeroconf standard RFC 6763. https://tools.ietf.org/html/rfc6763

          I got nearly everything working, except the case of finding all service types on the network using the service type "_services._dns-sd._udp" on the local domain.

          This is really useful for making debugging tools, such as making a Service Discovery browser.

          I get no results when I try plugging "_services._dns-sd._udp." (or "_services._dns-sd._udp") as the System.Devices.Dnsd.ServiceName in the aqsQueryString.

          You can see this for the summary on this feature here or in the RFC.
          https://developer.apple.com/library/archive/qa/qa1337/_index.html

          For comparison, I've…

          5 votes
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            1 comment  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
          • Add SOCK_SEQPACKET and SOCK_DGRAM to AF_UNIX

            Following the comments on the blog post for AF_UNIX, it would be nice to see SOCK_SEQPACKET and/or SOCK_DGRAM support.

            https://blogs.msdn.microsoft.com/commandline/2017/12/19/af_unix-comes-to-windows/

            Having SOCK_SEQPACKET would remove the burden of distinguishing between independent messages from the user. It also allows greater compatibility for existing POSIX-compatible applications, as was the original goal for implementing AF_UNIX.

            This would be comparable to the "message" mode of Windows named pipes, making AF_UNIX sockets a more complete replacement.

            14 votes
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              1 comment  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
            • Support for DNS over TLS

              It would be nice and a really big security improvement if Windows 10 could natively support DNS over TLS. Nice implementation of this feature is in the latest Android 9 Pie, where you can add your custom DNS resolvers and enforce DNS over TLS, or you can keep automatic configuration of resolvers (from DHCP) and use DNS over TLS if the automatically obtained resolvers supports it, otherwise use insecure (standard/plain) DNS.

              1 vote
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                0 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
              • Fix bug where DNS-SD does not unregister service

                There seems to be a bug in DNS-SD where finished services are not actually getting unregistered. So they get stuck in all the networks' devices' cache and never go away.

                I have found other reports of people around the internet who have struggled with the same bug, e.g.

                https://social.msdn.microsoft.com/Forums/sqlserver/en-US/c6b315ef-bc8d-4b4d-9480-5c736cfac50a/uwpc-unregister-dnssd-service-on-windowsnetworkingservicediscoverydnssd-api?forum=wpdevelop

                https://stackoverflow.com/questions/37184169/unregister-dns-sd-service-on-windows-networking-servicediscovery-dnssd-api

                I filed one against a Microsoft example on Github here:
                https://github.com/stammen/dnssd-uwp/issues/1

                2 votes
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                  0 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                • lsof and netstat not working (missing /proc/net/tcp)

                  I believe there is progress coming way for this issue already but I want to post it just to show my desire for it.

                  I am attempting to use lsof to find an open port for an application but rather it returns "sock: can't identify protocol". This occurs because /proc/net/tcp is empty and thus the socket cannot be identified as TCP.

                  2 votes
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                    0 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                  • AF_UNIX

                    We are developing components on Linux which has dedicated system call and memory requests. (AF_UNIX, ANCILLARY, MMAP, and many others ) within Docker. This would signify communication and access on the file system. will be possible to share the roadmap on the LCOW improvment ?
                    Thanks

                    2 votes
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                      1 comment  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                    • Closing StreamSocket should stop all pending asynchronous operations

                      Closing the StreamSocket (by disposing/deleting it) should stop all the pending asynchronous operations, reads or writes. It used to do this in Windows 8 and early Windows 10 versions but this apparently changed a while ago.

                      See https://social.msdn.microsoft.com/Forums/en-US/042569f1-d7c2-4577-b435-024ab0e09061/interrupting-storeasync-stream-socket-call?forum=wpdevelop

                      1 vote
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                        0 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                      • StreamSocket connection status

                        The StreamSocket class has no good way of polling the connection status without sending data (your connection may have died minutes ago, but you won't know until you try to send something which isn't desirable). Many of the old implementations in .Net and even in VB6 socket control had this functionality (and it was highly useful).

                        The proposal is to add something like:

                        if (socket.status != ConnectionStatus.Connected)
                        {
                        // Something happened, update your UI or run your business logic
                        }

                        3 votes
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                          0 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                        • Winsock: support L2CAP sockets

                          As explained here:

                          https://msdn.microsoft.com/en-us/library/windows/desktop/aa362910.aspx

                          BTHPROTO_RFCOMM is the supported protocol

                          Please add BTHPROCO_L2CAP, to allow us to use a lower implementation...

                          6 votes
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                            2 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                          • Prerelease Network APIs on Windows 10 Mobile Feature Release 2

                            Please make the new prerelease APIs from namespace Windows.Networking.NetworkOperators (e.g. https://docs.microsoft.com/en-us/uwp/api/windows.networking.networkoperators.mobilebroadbandantennasar) available to Windows 10 Mobile Feature Release 2 (10.0.152xx .0).

                            1 vote
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                              0 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                            • Enable UWP socket based server-client localhost communication

                              this is most like
                              https://wpdev.uservoice.com/forums/110705-universal-windows-platform/suggestions/12911217-uwp-blocked-tcp-serve-ip-inter-process-communicati
                              this proposed.

                              We wanna to commuicate other App in Desktop. not only other UWP but WPF application.

                              App Service is not real-time and not bi-direction

                              5 votes
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                                0 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                              • C# API to determine how "congested" or "slow" a TCP connection is

                                We live in a connected world. And I have a connected app that benefits from fast, low latency networks, but can work with a larger buffer, if need be.

                                It would be really cool if I could open a TCP/IP socket, and by listening to the raw transmissions and re-send events, determine how "good" the network quality is.

                                It would be even better if I could have an API that could make the calculations for me, and offer up a packet failure/retransmission percent, or average time between send and acknowledgment.

                                2 votes
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                                  1 comment  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                                • Allow to clear BackgroundDownloader's headers

                                  Currently the only way to set BackgroundDownloader's header is by SetHeader method, unfortunately once you set the heder value, you cannot clear it as the method:

                                  >This method allows the caller to set request headers. This method can be called multiple times for the same header. The values will then be concatenated.

                                  The problem comes when we want to create multiple downloads with one downloader, if the server requires to send request via headers, we are not able to downloaded files/items within one downloader, every item requires to create a new downloader instance with new headers. Of course in that…

                                  2 votes
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                                    0 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                                  • Add LDAP support

                                    Please add full LDAP-Support (Query, Read, Write). We're limited at work, since we can't use our mobile devices the way we want...

                                    3 votes
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                                      0 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Allow Fetch API call for UWP JS apps

                                      `fetch()` call on UWP app always throws "SEC7120: Origin null not found in Access-Control-Allow-Origin header." This must be solved for UWP apps to use Fetch API.

                                      3 votes
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                                        0 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                                      • DNS-SD API crashes DNS Client service on Windows 10

                                        Simple usage of the DNS-SD API results in the DNS Client service crashing.

                                        0. Set up a UWP shell app to test within
                                        1. Do the minimum to create an instance of a TCP service and add a text attribute with a key-value pair

                                        ...
                                        _service.TextAttributes.Add("CPath", "spConn");
                                        ...
                                        await _service.RegisterStreamSocketListenerAsync(_listener);

                                        2. Note when executed, DNS Client service crashes
                                        3. Comment out the TextAttributes line and note service does not crash

                                        Demo project:
                                        https://1drv.ms/u/s!AnjdAnZZcu-Got938jQ3G8d3KWRkNQ

                                        2 votes
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                                          2 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                                        • [UWP] Need http proxy function

                                          While http proxy function lost since windows phone,
                                          Now in UWP we can only set http proxy(ip+port,username+psw) in the connected Wifi manually.

                                          We need set it in codes.

                                          Thanks,
                                          Jimmy (win10app@outlook.com)

                                          40 votes
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                                            5 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →

                                            From Sidharth:
                                            This idea tracks allowing apps to set a custom system proxy for specific HTTP requests. Today, in the UWP platform, the system proxy gets used by default and apps have the option of not going through the proxy.

                                            If you have a scenario that depends on being able to set your own custom proxy from within a UWP app, please add your vote and add a comment with your scenario. Thanks!

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