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Microsoft Common Language Runtime To Be Cross-Platform

Posted by kdawson on Tue May 01, 2007 03:29 PM
from the .net-going-wide dept.
axlrosen alerts us to a Microsoft sleeper announcement from Mix07: a version of its Common Language Runtime will be available cross-platform. The Core CLR shows up as part of the Silverlight SDK that Redmond is open sourcing. From the blog posting: "The biggest Mix '07 announcement made on opening day of this week's show was one that Microsoft didn't call out in any of its own press releases: Microsoft is making a version of its Common Language Runtime available cross-platform. The CLR is the heart of Microsoft's .Net Framework programming model. So, by association, the .Net Framework isn't just for Windows any more."
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[+] IT: Why Microsoft Will Never Make .NET Truly Portable 293 comments
Michelle Meyers writes "Just days before Microsoft claimed to be making parts of the .NET CLR "available" to other platforms, NeoSmart Technologies had published an article bemoaning and blasting Microsoft's abuse of it's developers by pretending .NET was a true cross-platform framework when they're doing everything in their power to stop it from being just that. Of interest is NeoSmart's analysis of how Microsoft has no problem making certain portions of .NET available to Mac users — just so long as its distributed under an "open source" license that forbids any and all use of the code except for educational purposes — yet are terrified of the very thought of .NET being available to *nix users, even if that's to the benefit of .NET developers everywhere. Even more interesting is one of the comments on that article linking to legal documents in which Microsoft employees discuss the (im)possibility of creating a cross-platform code and UI framework, years before the .NET project even started!"
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  • by brennanw (5761) * on Tuesday May 01 2007, @03:30PM (#18946617) Homepage
    Now supporting XP and Vista!
    • Re:"Cross platform" (Score:5, Interesting)

      by Marcion (876801) on Tuesday May 01 2007, @03:51PM (#18946997) Homepage Journal
      "Silverlight will plug into Internet Explorer, Mozilla and Safari browsers, meaning the slimmed-down CLR will run on these platforms, as well."

      When a browser became a platform I'm not sure, when they started handing out the Web 2.0 Kool-Aid I suppose. It doesn't mention Linux so I reckon they mean Firefox on Windows.
      • Re: (Score:3, Interesting)

        Slimmed down sounds like marketting speak? Crippled is more accurate.

        Sure they can make a version of the CLR available on all platforms, just has to be crippled enough that people would rather use the one on windows. That way they can say "if you really really want to use it on any platform you can.. but we recommend that you use the version on windows because of X, Y and Z".. Also they will have some stupid excuse for not supporting X, Y and Z on the other platforms as if it was the fault of the other plat
        • Re: (Score:3, Informative)

          FUD more?

          The CLR shipped with silverlight runtime is supported in IE, Firefox and Safari on windows and mac. It contains all CLR 2.0 features, and has all of the silverlight libraries. It does however only contain a subset of the BCL (Base Class Libraries), but that is the same for all the users without .NET that downloads the silverlight runtime, be it on mac or windows. You are a fool if you believe that the majority of windows users have any version of .NET installed, let alone 2.0, even today.
    • by flyingfsck (986395) on Tuesday May 01 2007, @03:55PM (#18947057)
      "We have both kinds of music here: Country *and* Western."
    • Sadness. (Score:5, Funny)

      by oGMo (379) on Tuesday May 01 2007, @05:10PM (#18948287)

      You say this sarcastically, but this is what Microsoft really means when they say "cross-platform": it runs on all Windows platforms. (Vista, XP, Mobile, XBOX, etc.) I'm not joking. There should be (+1, Sad, Sad World) moderation.

      • by rockmuelle (575982) on Tuesday May 01 2007, @04:23PM (#18947485)
        Whoa there... just like 'Open' has other meanings that don't imply 'Open Source', cross-platform has many interpretations. The XNA claim to be cross-platform is definitely a valid one, particularly when you consider that the X-Box 360 is a PowerPC architecture and Windows XP and Vista are primarily run on x86 chips. If single development environment that can not only target three versions of an OS, but also target multiple processor architectures isn't cross platform, then I'm not sure what is.

        -Chris
      • Re: (Score:3, Interesting)

        Let's not allow Microsoft to dilute the meaning of the terms "cross platform"

        As opposed to Sun? Only recently do we have a JRE for FreeBSD that's supported. Only recently does Adobe make a Flash client for Linux. Adobe still has yet to make a flash client for 64 bit windows.

        Vendors do it all the time - dilute the meaning of cross platform. What they really mean is "cross platform where it suits us".
  • Currently, Silverllight 1.1 is x86 only. It won't run on PowerPC based Macs, just the ICBMs.

    For a logistical standpoint, that doesn't seem very cross platform to me if they've already chopped off half of the other platform with the 1.1 release...

    Yes, this is my current soapbox.
  • Wasn't .NET already cross-platform with the introduction of Mono?
    • Re:Mono? (Score:5, Interesting)

      by Jugalator (259273) on Tuesday May 01 2007, @03:37PM (#18946771) Journal
      Yes, kinda, partially.

      My question is more like --

      Will this aid Mono development? Is Mono still necessary? What about the Windows specific API's? A lot in .NET Framework is, like System.Windows.Forms, and Microsoft.*.
      • Re:Mono? (Score:5, Interesting)

        by gral (697468) <{moc.stibgorp} {ta} {rracs}> on Tuesday May 01 2007, @03:59PM (#18947123) Homepage
        The Core is not really that much. It is just enough to say they are Cross Platform like Java, but really not enough to allow a dev to run .Net code compiled on Windows on a linux or Mac. Mono is actually alot further along, and actually WANTS the CLR to run Cross Platform.
        • Probably not, since the Microsoft Permissive License has a GPL-like 'viral' clause, which means that if Mono used the code, Mono would probably have to be licensed under the Ms-PL.

          I don't see a "viral" clause in the Ms-PL. All the Ms-PL requires is that you include its copyright notice with your distribution and that the Ms-PL licensed code itself remains under the Ms-PL.

          "Is Mono still necessary?" Yes.

          Yes, but not because of the license. It's because Mono does a lot more than run CLR and .NET code.
    • An underfunded third-party implementation of the CLR is not exactly the same thing as one that is backed both by the name and the resources of Microsoft.
      • Re:Mono? (Score:4, Interesting)

        by gral (697468) <{moc.stibgorp} {ta} {rracs}> on Tuesday May 01 2007, @04:01PM (#18947159) Homepage
        Mono really isn't that small a project. What make the .Net framework appealing to most is the ability to work with IO, Database, Sockets, Forms, Console, etc. Mono does all this. It doesn't sound like this "Release" from Microsoft is going to really do much.
      • typical FUD (Score:5, Insightful)

        by nanosquid (1074949) on Tuesday May 01 2007, @04:51PM (#18947969)
        Well, except Mono is a small project

        Mono is a big project as far as such projects go.

        that Microsoft would rather see die.

        I don't know. Who cares?

        It will disappear when they are ready to drop litigation bombs.

        The legal situation surrounding Mono has been more carefully analyzed than any other open source project I can think of. Unless you can point to a specific legal problem with Mono, you're just spreading FUD.

        What disturbs me more is how the term "open source" has been co-opted and soiled by Microsoft when the license terms which will only be FSF approved when microsoft owns the FSF.

        The Microsoft Permissive License looks like a perfectly good open source license to me; it's basically like Apache. In particular, it includes patent grants. The FSF probably doesn't like the Ms-PL because it's BSD/Apache-like.

        If you can identify a specific problem with the Ms-PL, please point it out. Otherwise, please stop spreading FUD about it.
        • Re: (Score:3, Interesting)

          The legal situation surrounding Mono has been more carefully analyzed than any other open source project I can think of. Unless you can point to a specific legal problem with Mono, you're just spreading FUD.

          No it hasn't, because the questions that need answered are conveniently side-stepped in the Mono FAQ. As an exercise, find yourself the extremely flimsy and amateurish patent grant on the ECMA's web site and ask yourself whether it really does give anyone implementing a CLR a full and transparent paten

          • Re: (Score:3, Interesting)

            As I stated before, this is only significant if there are patents that apply exclusively to the CLR. It's quite possible that whatever patents are involved, they may apply just as much to other FOSS projects as they do to Mono. Given the fact that companies try to make their patents are broad as possible, this is a likely scenario. Not that I'm not claiming that these patents are valid, just that if they are found to be, they will probably cover more than the CLR.

            If MS had the choice of suing the mono proje
        • Of course they have. Mono is just legitimate enough for Microsoft to say "and if you need cross-platform support, there's Mono out there, so go with .NET". But just unsupported enough so that when companies ACTUALLY go with .NET, Microsoft can say "you don't REALLY want to move off of Windows because Mono is unsupported and potentially flaky, and who knows whether we'll sue them someday."
  • by AKAImBatman (238306) * <akaimbatman.gmail@com> on Tuesday May 01 2007, @03:34PM (#18946705) Homepage Journal

    The Core CLR shows up as part of the Silverlight SDK that Redmond is open sourcing.

    That's great. Now if Microsoft would actually implement a few web standards (rather than spewing out more Microsoft "standards") I might actually trust them. As it happens, though, I don't. Internet Explorer has the absolute worst track record of all the modern web browsers. It's fairly straight forward to tune Javascript/DOM code to run in Mozilla, Opera, and Safari. But Internet Explorer? Meh. Let's just say that it adds another 30-50% to the project time.

    Now Microsoft wants to broadcast their wonderful multimedia technology that will enhance the web, be cross-platform, show cool multimedia-type stuff that we can already do with SVG or Canvas. Woohoo. Whoopdedoo. Wow.

    Not.

    This smacks of yet another Microsoft embrace, extend, and extinguish stratgey. "Yeah, guys. Come on in. Here's the Silverlight plugin which works on Macs. We're going to be real buds with these Mac peoples! We're even porting a teeny bit of the CLR (ed: And you thought Java was browser bloat?) to make our XAML/Avalon/WPF technology work for you guys. Oh, did we mention that Macs are kind of slow? (ed: They are now!)"

    Next version: "We haven't seen enough customers demand support for the Mac. So we're dropping the plugin for that platform and adding some amazing new features to the Windows version." *FWHHOOOSH* Extinguished.

    If Microsoft really wanted to compete, they'd be the first to implement the OpenGL API for the Canvas tag that the WHATWG has been working on. Oh, but wait! That wouldn't be Window-y enough. It would have to be the DirectX API through Javascript, dontchaknow. :-/
    • Parent not trolling (Score:5, Informative)

      by metamatic (202216) on Tuesday May 01 2007, @03:49PM (#18946949) Homepage Journal
      That's exactly what Microsoft did with ActiveX. They pushed ActiveX as cross-platform, delivering an ActiveX SDK for the Mac and supporting ActiveX components in IE.

      Then after a while, they dropped ActiveX support, saying it was too much effort to make it work on OS X.

      Then after a while longer, they dropped IE too.

      Same with WMV. Seen Windows Media Player for the Mac? No? That's because they dropped it a while back, and killed all support for DRM-protected Windows Media on the Mac. (Instead they suggest that people use a third party QuickTime plugin that only handles unprotected WMV.)

      Jeez, lots of Microsoft fanboys or astroturfers moderating today.
      • Same with WMV. Seen Windows Media Player for the Mac? No? That's because they dropped it a while back, and killed all support for DRM-protected Windows Media on the Mac. (Instead they suggest that people use a third party QuickTime plugin that only handles unprotected WMV.)

        Im pretty sure that Windows Media Player for Mac never handled protected WMV files at all (I am prepared to stand correct though), so there was nothing lost with the move to Flip4Mac.
    • I wish I could say I was surprised. :-/

      From TFA:

      The Core CLR will include the garbbage collection, type system, generics and many of the other key features that are part of the CLR on the desktop. It won't include COM interop support and other features "that you don't need inside a browser," the Microsoft execs say.

      Which is to say that it's being ported just for Silverlight. Silverlight depends on XAML [wikipedia.org]. (Originally expanded to Extensible Avalon Markup Language.) XAML is the serialized form of WPF [wikipedia.org] (Windows P

    • Re: (Score:3, Interesting)

      It's fairly straight forward to tune Javascript/DOM code to run in Mozilla, Opera, and Safari. But Internet Explorer? Meh. Let's just say that it adds another 30-50% to the project time.

      Now Microsoft wants to broadcast their wonderful multimedia technology that will enhance the web, be cross-platform, show cool multimedia-type stuff that we can already do with SVG or Canvas.


      Actually, the reason they're bundling the CLR is because the browser's own Javascript/DOM systems (which are also supported by Silverli
      • by AKAImBatman (238306) * <akaimbatman.gmail@com> on Tuesday May 01 2007, @04:21PM (#18947439) Homepage Journal
        Dude. CANVAS [mozilla.org]. Hello?

        Microsoft pulled the wool over your eyes. They were showing you a DOM app that needed to modify the rendering tree in order to make a move. This is similar to a 3D Scene Graph, but without the hardware acceleration. When Microsoft showed you the Silverlight app, they were showing you a hardware-accelerated drawing program. The very purpose for which Canvas was created.

        As for the AI speed (assuming that the performance issues weren't entirely being caused by the DOM manipulations), Silverlight still uses Javascript for scripting. If it can run so much faster in their CLR scripting why don't they use their new Javascript engine in Internet Explorer?

        In case you think I'm joking, that is exactly what Mozilla is doing with their new Tamarin engine [slashdot.org]. The new engine is faster and more feature rich, ergo it's being integrated into the browser platform. To make matters even more interesting, Mozilla and Adobe are sharing the development of the engine, so that they can both use it. Mozilla in the browser, Adobe in Flash.

        I'm sorry. Microsoft is pulling a fast one on you. There is no need for Silverlight other than to lock you into Microsoft technology.
          • Re:MOD PARENT UP (Score:5, Informative)

            by Anonymous Coward on Tuesday May 01 2007, @05:25PM (#18948455)
            Unfortunately neither of them actually knows what they are talking about.

            For starters, a.k.a. why Chester K doesn't know what he's talking about, at MIX they showed JavaScript in the browser against C# in Silverlight v1.1 - not C# in JavaScript. The speed comparisons are correct.

            why AKAIAmBatman is wrong is because this is absolutely not about the performance of rendering. The setup here is that you have one app, with whatever that infrastructure is running in, delegating to the player code. The player code being C#, JavaScript, or a human. This is how you typically do chess games and no surprise it's how they did it here. Therefore the JavaScript is doing no rendering of any kind. That is unless the game was implemented using JS, but even if it was it doesn't matter. The idea is to give each player 1 second to calculate and they give you the best move and how many calculations done. This is merely a measure of raw computational power: calls, either some array lookups, and simple math (potentially bitwise arithmetic, potentially not depending upon the implementation). Finally they used the same algorithm just implemented in the two different languages.

            And because Chester K was misinformed this populates down into AKAIAmBatman's comments where things go wrong. The Tamarin engine has nothing on this. ActionScript has nothing on this. What we're talking about is approaching near native code speed in the browser. JavaScript, no matter what, just isn't going to get there and still be JavaScript. It's way too dynamic. Maybe you can do some whole program analysis but even that is going to be tough. It seems the goal for Tamarin is only a 10x improvement (http://simonwillison.net/2006/Nov/9/tamarin/) if you look at the source code. That means that C# will still be 1000 times faster than the improved Tamarin engine. It's just a fact - JavaScript sucks.

  • by LibertineR (591918) on Tuesday May 01 2007, @03:34PM (#18946709)
    If a lot of you, previously unexposed to the CLR gain access to it, you will discover that it is not the crap that so many of you have read it to be.

    From denial, to grudging acceptance, to surprised admiration, is how the process works, and whether you hate Microsoft or not, a few months playing with C# usually results in the comment "Damm, why didnt they do this with Java?"

    The Borg isnt dead, they have only been regenerating. Prepare to modulate shield frequencies, because they are coming.......

    • Who cares, you can run Python on both!
    • by UnknowingFool (672806) on Tuesday May 01 2007, @03:47PM (#18946911)

      From denial, to grudging acceptance, to surprised admiration, is how the process works, and whether you hate Microsoft or not, a few months playing with C# usually results in the comment "Damm, why didnt they do this with Java?"

      After playing with C# for a few months, the answer I came up with is that C# happened after Java and (I would hope) improve upon Java in some ways. But I stopped using it because of a few reasons. The first of which was the cross platform problem. While Java wasn't open source at the time, it worked on a lot of different platforms. At best you could implement .NET with Mono but there was no guarantee that a change by MS would not negate the hard work of the Mono team. The second reasons is that MS has always been long on promises about technology and short on execution. I'm content to let some else be the guinea pig.

      • FUD (Score:3, Informative)

        At best you could implement .NET with Mono but there was no guarantee that a change by MS would not negate the hard work of the Mono team.

        Really? How so? What kind of change from MS would make Mono stop working? In the absolute worst possible case, I'm sure Microsoft could hamper future development of Mono, but that takes nothing away from any apps that are currently running just fine on Mono.

        Speaking on ~4 years of experience, .NET does a fine job at being cross platform, contrary to what everyone aroun
    • If a lot of you, previously unexposed to the CLR gain access to it, you will discover that it is not the crap that so many of you have read it to be.

      Who actually claimed the CLR and C# is "crap". No one said that. Microsoft business is more of politics and the burden of supporting obsolete legacy architectures. .NET's CLR engineering isn't hindered by either of those.
    • Darling and others, as I am may day drunk, I just have to say this: all languages are all the same. I use and have used Java as my primary programming language for the last 5 to 6 years. Before that I used Pascal and some C to achieve what I wanted. In these years I have to confess, all these languages to me have seem to be all the same. Yes, Java is more object orientated and thanks to modern IDE's (hallelujah for Netbeans) developing has newer been as easy at it is. The story still remains the same, I co
    • If a lot of you, previously unexposed to the CLR gain access to it, you will discover that it is not the crap that so many of you have read it to be.

      In the end, it doesn't matter. Using the .NET framework both hurts Java marketshare and props up Microsoft's marketshare, and their monopoly. Do you really want to hand even more keys-to-the-kingdom to Microsoft? What if, a few years from now, .NET pushes Java out of the market, and Microsoft gains a monopoly in this space? Do you really think .NET would

        • Re: (Score:3, Insightful)

          Yeah -- nice try -- it's not a strawman -- The call out to unmanaged code and return each take over 1000 cycles. (And such callouts don't work at all in mono.) So something that should take about 500 cycles (3D perlin noise generation) now takes ~2500. Ouch -- just a bit slower than leaving it managed. (For image rendering with procedurally generated textures, the perlin noise generator is frequently a *huge* spike in the

          Sometimes you need nice fast math functions that can take a small handful of cycles.

          My
              • Re: (Score:3, Insightful)

                I don't know a graceful way to say this: stuff your IDE. All IDEs are memory hungry, bloated, and have frustratingly tedious editors. I don't expect the whole world to use vi(m), but I do and I am very very efficient with it. I cannot be nearly as efficient with an IDE. I know some IDEs have vi-like plugin editors but I find them pale imitations. And did I mention the memory usage?

                Memory usage? Visual Studio uses about as much memory as Firefox. We're talking about .NET and (most likely) Windows here, you know. You have to be a masochist to run those on a machine where memory is tight anyway.

                Read: eventually you just learn to decipher the code and know that it is not what the syntax suggests it is.

                That's true anywhere. If I write "x = 5", is that assigning a field or a local variable? If I write "foo.bar()", am I calling a virtual instance method I can override, a sealed instance method I can't override, or is "foo" a class name and I'm calling a static method? Or maybe "foo.bar" is a fi

  • Not the whole CLR... (Score:5, Interesting)

    by Mattintosh (758112) on Tuesday May 01 2007, @03:39PM (#18946797)
    The summary got my hopes up. I like C# and .NET quite a lot, but I also like Mac OS and Linux. I've been trying out Mono and Monodevelop (as well as some Xcode plugins for C#/Mono), but they're really not a good match for VS2k5 yet. (I'm hoping that "yet" comes true and doesn't turn into "ever".)

    Unfortunately, only the "Core CLR" will be ported, and only to the Mac OS (probably due in part to MS Office for Mac), not Linux, and not even older (PPC) Macs. I also seriously doubt there will be much in the way of developer tools for the(se) other platform(s).

    Sad, really. Office and VS are the only two decent Microsoft products, and they refuse to port either of them to a decent platform (aside from the tiny fragment of Office that makes it to the Mac).
    • by Chester K (145560) on Tuesday May 01 2007, @04:18PM (#18947387) Homepage
      Unfortunately, only the "Core CLR" will be ported, and only to the Mac OS (probably due in part to MS Office for Mac), not Linux, and not even older (PPC) Macs. I also seriously doubt there will be much in the way of developer tools for the(se) other platform(s).

      A subset of the CLR similar to the Compact Framework is included in Silverlight; with a much simpler security model. It's not a replacement for the full .NET Framework by any stretch. There have been whispers about a Linux version of Silverlight as well (Flash has one, and Microsoft is trying to provide a superset of the Flash/Flex featureset).

      As for developer tools, while it's not exactly developing on a Mac, per se, you can use Visual Studio to do remote debugging on CLR code running in a Silverlight app on a Mac client.
  • How's this differ from rotor?
  • How will this effect the Mono project?
    • Nothing because Microsoft will mess it up.

      Open Source or no, they are still Microsoft, they announce something big *then* go program it in a half-baked way, then hope to fix it with service packs and hot fixes.
  • Don't! (Score:3, Insightful)

    by Daishiman (698845) on Tuesday May 01 2007, @03:55PM (#18947051)
    It's a trap!
  • Stop the celebration (Score:5, Informative)

    by PineHall (206441) on Tuesday May 01 2007, @04:09PM (#18947265)
    From the blog:

    Microsoft is not opening up the source code to the Core CLR. It is opening the code to the DLR by posting it to the Microsoft CodePlex source-code repository under a Shared Source Permissive license.
  • by Qwavel (733416) on Tuesday May 01 2007, @04:59PM (#18948105)

    MS had already said that they planned to support Apple (and WinCE) for their WPF/E (windows presentations everywhere) technology. They then renamed that to Silverlight, and lo-and-behold, it still supports Apple. Where's the news?

    Not to mention that this was predicted all along. MS has been supporting the MacOS for years, and hinting at the cross-platform possibilities of their net platform. MS wants the Mac to replace Linux as the alternative to Windows, so this is a pretty straightforward decision for them. So why are people acting suprised?
    • The news is that the first bits are available, and it's the complete CLR, not a stripped down CLR. The accompanying .NET Frameworks libs are stripped down, but the CLR is complete, supporting all .NET languages. The original wpf/e spec only had support for C# and VB.NET, and lacked support for reflection and whatnot (which many of the more "exotic" languages depend on).

      Also, the DLR is new.
  • by steveoc (2661) on Wednesday May 02 2007, @01:21AM (#18952959)
    From inside the mind of Microsoft, 'Cross Platform' could well mean something like this :

    Being Cross-Platform means that Silverlight will be available on many different supported Operating Systems, and Silverlight represents THE most cross-platform product produced by Microsoft in its long and exciting history.

    The wide range of operating systems targetted for production release of Silverlight include :

    Vista Enterprise
    Vista Ultimate
    Vista Home Premium
    Vista Business
    Vista Home Basic (Limited support for some features)

    The features and facilities of the free cross platform runtime binaries will understandably differ from platform to platform. For example, on Vista Home Basic, the silverlight runtime binary will only operate in full resolution no more than 3 times in any 24 hour period .. this being a feature that users have strongly demanded from Microsoft during pre-production surveys and beta tests.

    Silverlight for Vista Enterprise and Vista Ultimate will be able to run for a whole 8 continuous hours in any 24 hours period before a noticable degradation in performance and visual resolution is apparent. Again, this is in response to demand from users for a safer and more secure experience when executing silverlight applications, and demonstrates Microsoft's committment to tailor its development to exactly suit the wishes of its valued users.

    Silverlight makes use new synergistic paradigms in the field of computer science to provide the richest experience possible for the end user. Unfortunately, such highly advanced concepts as are seen in this new platform are not easily retrofitted to older legacy operating systems which are no longer vendor supported. Whilst Microsoft would dearly love to provide runtime binaries for systems such as Windows XP, our users have shown a clear preference for the more modern and powerful Vista range of operating systems, and so it is unlikely that a fully supported Silverlight runtime will be made available for Win XP. There may be some residual interest for Windows XP in the hobby niche market, however professional organisations overwhelmingly choose Vista.

    Similarly, antique operating systems such as VMS, PrimeOS, MS-DOS and Linux either do not provide the necessary power to run Silverlight, or may in some instances have serious question marks regarding their legality, which unfortunately may impact our ability to support Silverlight in these environments. But again, the demand there is very low-impact, being part a dwindling hobby niche market of little mainstream interest.