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Windows 7's Virtual XP Mode a Support Nightmare?

CWmike writes "Microsoft's decision to let Windows 7 users run Windows XP applications in a virtual machine may have been necessary to convince people to upgrade, but it could also create support nightmares, analysts said today. Gartner analyst Michael Silver outlines the downsides. 'You'll have to support two versions of Windows,' he said. 'Each needs to be secured, antivirused, firewalled and patched. If a company has 10,000 PCs, that's 20,000 instances of Windows.' The other big problem Silver foresees: Making sure the software they run is compatible with Windows 7. 'This is a great Band-Aid, but companies need to heal their applications,' Silver said. 'They'll be doing themselves a disservice if, because of XPM, they're not making sure that all their apps support Windows 7.'"

32 of 413 comments (clear)

  1. Pardon me... by Franklin+Brauner · · Score: 5, Insightful

    ...but didn't Apple successfully pull this off twice?

    1. Re:Pardon me... by Daimanta · · Score: 5, Insightful

      Mac OS is a niche market. In the Windows market, reality has a way of kicking you in the balls. Yes, this will be a support nightmare but we simply cannot write of the biggest heap of legacy software ever. That would be the true nightmare, no correct support for older apps. And by older I mean everything tailored for XP, either 1 or 7 years ago.

      --
      Knowledge is power. Knowledge shared is power lost.
    2. Re:Pardon me... by slk · · Score: 4, Insightful

      Apple had a very different set of problems, but has actually pulled something similar off three times.

      68k to PowerPC: Lots of apps didn't work, though it was really hard to tell what System 7 broke versus what 68k to PowerPC broke.

      OS9 to OS10: utter nightmare. Classic works great as long as you're on a single-user system running as admin with well behaved applications. You run into everything from apps that expect to busy-wait to the fact that OS9 has absolutely no idea what's going on with concepts like file permissions. Ridiculous support nightmare on anything with non-admin users, multiple users, etc.

      OS10 PowerPC to OS10 Intel: 99% of stuff just works. Very clean, very well done. The handful of apps that broke were generally easily fixed, or were broken by design (i.e. anything made by Adobe)

      XP on Win7 is more like the whole OS9 to OS10 transition, and like that transition, your best bet is to ignore the existence of XPM (just like your best bet was to ignore the existence of Classic)

      --
      ERROR: Null .sig, core dumped.
    3. Re:Pardon me... by Bill_the_Engineer · · Score: 5, Interesting

      In the Windows market, reality has a way of kicking you in the balls.

      Actually, Windows has a way of kicking you in the balls. How would running XP in a virtual machine be any different from the usual windows experience?

      I think this is the smartest move Microsoft has done in a long time. They need to relegate the backwards compatibility to a virtual machine, and make the next Windows OS much leaner and secure.

      I agree with the GP that Apple had little problems with this and their market is of sufficient size to assume that Microsoft would fare just as well.

      --
      These comments are my own and do not necessarily reflect the views or opinions of my employer or colleagues...
    4. Re:Pardon me... by David+Gerard · · Score: 5, Informative

      No, it was an actual 68LC040 emulator in software.

      In fact, large chunks of the System were still written in 68040 code for a long time. So new releases of the OS would actually run faster and faster as that code was replaced with native versions.

      --
      http://rocknerd.co.uk
    5. Re:Pardon me... by atraintocry · · Score: 4, Funny

      Yes.

    6. Re:Pardon me... by SpryGuy · · Score: 4, Insightful

      I use Virtual PC to run XP under Vista right now, and have for a year. And it works.

      I find it difficult to believe that MS would release this solution in any state that is less functional than what currently exists under Vista.

      It was just announced and is in beta (likely lagging behind Win7... since it ships as a separate download there's no need for it to ship at the same time as Win7, which itself is six months away at the least). There's time.

      --

      - Spryguy
      There are three kinds of people in this world: those that can count and those that can't
    7. Re:Pardon me... by Arainach · · Score: 4, Insightful

      You really don't get it, do you? Source compatibility isn't enough. You need BINARY compatibility. Many core business apps were developed by companies that no longer exist or developers who were no longer there. Many times, Source code doesn't exist.

      Even if it does, users don't want to or know how to recompile it. And fixing that one function call that no longer exists? Why should people have to? Every function call that no longer exists is another pile of developers who won't switch to your latest version.

      I highly reccomend reading Raymond Chen's blog/book to understand how backwards compatibility works in the real world.

  2. kdawson by rgo · · Score: 5, Insightful

    stop posting troll articles!! :@

  3. Won't this largely depend on how well it works? by DoninIN · · Score: 5, Interesting

    The better it works the easier it will be to support. Also why does the XP instance have to have its own antivirus and firewall? I don't understand why the windows 7 (Magnificent 7? Windows Magnifica!) firewall and antivirus won't be sufficient for the virtual XP machine inside.

    1. Re:Won't this largely depend on how well it works? by Zeroko · · Score: 5, Insightful

      The need for a separate antivirus makes sense because the virtual machine is running a different operating environment with susceptibility to different viruses. A separate firewall does indeed seem superfluous.

    2. Re:Won't this largely depend on how well it works? by MightyMartian · · Score: 5, Insightful

      I see no reason for a second AV program, providing the VM's virtual drive is readable by the host operating system. If any kind of nasty program gets installed, it's going to have hit the file system at some point, and if the host's AV can plug in to that file system, it can suspend or terminate the VM.

      --
      The world's burning. Moped Jesus spotted on I50. Details at 11.
  4. On the contrary... by casings · · Score: 5, Interesting

    This could be very good for support people. Since Microsoft would have to keep supplying patches to XP, there will be no reason to even think about installing Windows 7. Thus allowing support people to the confidence of continued patches.

    1. Re:On the contrary... by jmorris42 · · Score: 5, Interesting

      > Since Microsoft would have to keep supplying patches to XP, there will be no reason
      > to even think about installing Windows 7.

      It gets even better. If they ship an XP compatibility layer in 7 it tells everyone that XP apps will be a supported option for the lifetime of Windows 7. And if XP is kept alive in this way, ya you are probably right that patches for XP itself will probably be continued for quite some time, especially since they are going to be selling newly licensed copies at least as late as this Xmas.

      However it is the follow on effects of a promise that XP will be a viable platform to run applications in for at least the next 5-7 years. It makes XP the safe choice of API to write new code to. An XP compatible application will run on XP, Windows 7 and via CodeWeavers increasingly effective efforts (as the XP target has remainied basically stable for years) it means an XP application can run at native speed on Mac and Linux. And it doesn't take that much effort to write XP apps that will run on 7 anyway without needing the emulation layer so 7 compatible XP code is going to be a more universal binary than Java ever achieved in the real world.

      If Microsoft isn't careful with this XP on 7 plan they could Warp themselves.

      --
      Democrat delenda est
  5. So what, if true by Radhruin · · Score: 5, Insightful

    This is exactly what we want them to do. Virtualize the deprecated, old stuff, and get it out of the main operating system. Move on from the cruft of yore and build in some sweet new fundamentals that break backwards compatibility. We've been crying for them to do this for forever, so let's encourage it. It might add a bit of a support burden, but if it gives us a better product overall, what's the big deal?

    1. Re:So what, if true by Chang · · Score: 4, Insightful

      The thing is - Windows Vista and Windows 7 aren't really a fundamental departure from the past. For example, I applaud Microsoft for finally getting on board the IPv6 train with Vista and Win2K8 but what happened to rewriting system services and the Windows shell in managed code (.NET)? That would be a fundamental change that would justify a compat VM container. Microsoft is really giving customers the worst of both worlds. Making only incremental improvements to their mainline OS's while creating a backwards compatible VM which is simply more cruft to throw on top of an ever expanding pile of backwards compatible cruft.

    2. Re:So what, if true by EvanED · · Score: 4, Informative

      And not that I make a habit of replying to myself, but even the NT system calls are just a wrapper around the low-level interface provided by the graphics card, which are just a wrapper around the DVI or VGA signals that go out on the wire, which are just a wrapper around whatever the monitor actually uses internally, which are just a wrapper ...

      OO syntax (in C++ almost entirely, in Java mostly, and in Smalltalk or Ruby a little bit) is just a wrapper around dealing with function pointers yourself, which with the rest of C is just a wrapper around assembly language, which is just a wrapper around machine code, which is just a wrapper around the actual architectural blocks of the chip, which are wrappers around gates, which are wrappers around transistors, etc.

      Sure, some of these "wrappers" are more complicated than others, some provide more of an abstraction increase than others, but you can't dismiss something just because it's a "wrapper". In .Net's case, even the part that is "just" a wrapper around Win32 is a very useful one.

  6. Since when does anyone take Gartner seriously? by jerryasher · · Score: 5, Funny

    Fear and doubt...doubt and fear.... Our two weapons are fear and doubt...and ruthless uncertainty.

  7. Re:A big mess by Dhalka226 · · Score: 5, Insightful

    I think overall, this is a better way of moving forward. Windows has been essentially crippled from several different perspectives for years because of their need to support backward-compatibility, even with broken interfaces or insecure models. Letting a significant portion of that flow into VMs of older operating systems for those customers who absolutely, positively can not get off their old apps is a good compromise. It allows them to start with a cleaner slate for the majority who has no such requirements.

  8. IT depts that don't need it ain't going to use it! by Anonymous Coward · · Score: 5, Insightful

    I'm 100% sure that a competent IT dept that has no use for this feature will, unsurprisingly, NOT USE IT, saving themselves all the support hassles entirely.

    And for those that DO need this feature, they know there's basically no other way and it's worth the extra support hassle because they know they will have people saying Application XYZ MUST work I don't care how.

    I suspect this means that the old applications that have to work and only currently work on XP can now be moved forward and the IT dept can get everyone onto Windows 7. Once there, the devs of these applications will have Windows 7 rather than XP to test against/run with and they'll have an incentive to update their programs to just work on Windows 7 because, like Classic on Mac OS X, this mode will have just enough 'impedience' that programs will be updated to work on Windows 7 native; but they will work okay in the meantime.

    That's the thing - this isn't seamless. It's going to be a little tricky to set up applications to run in the XP box rather than natively on Windows 7, even if launching them is easy.

    The trick is "Just enough impedience to get people to update to 7 native while providing a path."

  9. Let me fix that for you: by pseudonomous · · Score: 5, Interesting

    From TFA:

    "Windows XP Mode is specifically designed to help small businesses move to Windows 7," Scott Woodgate, director of Windows enterprise and virtualization strategy, said in a blog entry last Friday.

    Corrected:

    "Windows XP Mode is specifically designed to help us move copies of Windows 7 proffessional and ultimate, as opposed to the cheaper home addition,"S cott Woodgate, director of Windows enterprise and virtualization strategy, meant in a blog entry last Friday.

  10. Drivers? by tepples · · Score: 5, Interesting

    How would running XP in a virtual machine be any different from the usual windows experience?

    It depends on whether Windows 7 can pass-through USB devices and PCI cards to Windows XP. Otherwise, people will try and fail to use hardware with XP drivers on the virtual XP. (Windows 7 uses Vista drivers.)

  11. Stupid, Stupid, Stupid... by TheNetAvenger · · Score: 4, Insightful

    How stupid are these people?

    Windows alreadys supports multiple OSes, from the Win16 and DOS subsystems to the BSD/UNIX subsystem, and also the Win32 and Win64 subsystem.

    Which all have their own kernels, and run in NT OS subsystems.

    So adding in a VM'd version of XP is going to add to 'support'? How?

    The updates still come from MS Update, it isn't like the in house people are writing the patches themselves.

    If anything this creates more work for MS, not a freaking IT department.

    I'm not sure where to even begin with how stupid this sounds...

    More tech support? Really?

    If an IT department isn't using group policies and the business centralization and integration technologies of Windows, they shouldn't be using Windows and instead move to something that has almost no central control or mangement like Linux or OS X.

    The hallmark of why business CONTINUES to choose Windows deployments is the ease and control that MS continues to give IT administrators, along with their centralized server management concepts that really do make anything else out there look foolish.

    A well deployed Windows server/client environment is peanuts to administer, even when the IT people shove Firefox on users and have to run around and do 'manual' updates because Firefox is 'retarded' about allowing remote or admin level updates without giving your users administrator rights.

    The second part of this is not understanding the virtualization technology being used. They assume it is like a 'free window' VMWare mode.

    It isn't, it somewhere better a VM and a Subsystem on the NT architecture, which is one thing that makes HyperV as powerful as it is.

    Truly people forget that NT is a user mode OS-less architecture, and that everything anyone sees is a 'virtual' subsystem, even Win32 has its own kernel and doesn't really know that NT is running under it.

    Ok, I'll let people go grab the facts on this crap themselves, and give Win7 a week or two i people's hands that actually 'do' know what they are talking about...

    PS The XP Virtualization is mainly for corporate clients, as 99.9% of all software works on Vista and Win7.

    It is only the in house written or 'corporate' written software crap that has no concept of NT security that has problems with Vista or possibly Win7 that enforces the 20yr old NT security model that the software developers should have written for in the first freaking place.

    1. Re:Stupid, Stupid, Stupid... by TheNetAvenger · · Score: 4, Informative

      Holy cow, how does this stuff get under the radar, especially on Slashdot?

      Not directing this at the poster..

      I am hit by about 80% of IT people not even realizing this exists, and there are a lot of people locked in a 'Windows' corporate world that would really enjoy this stuff, and could use it on a daily basis.

      Quick Info...

      POSIX was a watered down 'basic' UNIX model OS provided under Windows NT 3.1 through Win2K.

      In the meantime MS sponsored and worked with several companies in their own UNIX subsystem technologies, and the result is SUA, or one that came from joint work with Interop and MS.

      (MS made the Interop people very rich and bought them out in the early 2000s.)

      So there has been a 'basic' POSIX environment running on NT since NT was born, but there has been a higher end UNIX subsystem that has been available around NT 4.0 and later provided by MS around the time Windows 2003 Server was released.

      (So this has been free and around for at least 6 years.)

      PS: MS also funded and worked with a couple of Linux (yes Linux) UNIX subsystems, but they haven't ever left R&D.

      The current UNIX Subsystem for Windows provides SVR-5 and BSD UNIX. (And there are people do Linux stuff as well on their own, but that is a non-issue as it is not official MS supported subsystems.)

      So yes Virginia you can easily run UNIX applications on Windows, in a native subsystem - no VM - native, that uses the IPC and Object Manager abilities of the NT kernel architecture that gives the UNIX Subsystem communication to the Win32/Win64 subsystem. Meaning you can take your UNIX app and let it tap an ODBC database driver instead of using MYSQL, as well as run on the Windows Desktop natively.

      Two quick Links...

      http://www.suacommunity.com/

      http://technet.microsoft.com/en-us/library/cc771470.aspx

      (There is a lot of information on the MS site and whitepapers all around, as well as even OSS sites that work with SUA as it is known.)

      ---

      Even if you are just an IT person that is a UNIX CLI guru, break out the UNIX subsystem on Windows and go to town with your favorite UNIX CLI.

      ---

      Again it has been a free download from MS for XP or Windows Server since at least 2003, and it even ships on the Vista DVDs (Business & Ultimate) that is just a one click to install from that add/remove Windows Features/Components.

      This is also one of the cool things about the NT architecture, is the client/server kernel design that offsets and layers upper level OS API sets. NT also uses its 'hybrid' kernel to do things like this that OS X and Linux can't do, by allowing both direct and managed non-direct calls to let it create the upper layer OS subsystems with offset API kernel interfaces that are easily layered.

      I hope that this helps *nix people using Windows or at least someone finds this cool and something that makes their life easier.

  12. Re:Inflated numbers? by tepples · · Score: 4, Informative

    Why does every user need two operating systems? That seems awfully wasteful.

    Because a non-free application that's no longer supported by its original publisher needs Windows XP, but the only OS of which Microsoft is selling new copies is Windows 7.

  13. Re:Yes but ... by NeverVotedBush · · Score: 4, Interesting

    I almost feel bad for Microsoft because of the number of people attacking their code. Almost.

    As I was perusing the various security boards and newsletters I frequent, I started thinking of how amazingly large the array of people making their livings off of Windows' security deficiencies. It's huge.

    There are a multitude of websites that might as well be devoted to Windows security issues. There are the people who constantly write AV signatures. People who collect malware in honeypots and distribute it to security researchers. People who have to write and test patches - both at Microsoft and at other software publishers. People who lecture on Windows security. People who do forensics on compromised machines. People who try to contain the damage when an organization's computers are compromised. People who have to notify the people who are affected by the compromises. People who have to untangle and try to block unauthorized bank charges and identity theft. Etc.

    It's like the bump on the log at the bottom of the sea song. The chain just goes and goes and goes. At least it is employing people but you have to wonder what the total global expenditures are in dealing with the consequences of security issues in Microsoft Windows.

    This isn't meant to be a troll. It's a legitimate concern and I wonder when people will finally say "enough".

  14. crash and burn by NicknamesAreStupid · · Score: 5, Interesting

    This is sad, just another example of how the wheels are coming off the cart while careening down another blind alley. I was at a trade show last month, and the visit to the Microsoft booth was surreal. The first kiosk was for Windows 7 and a smiling young man touting the virtues of this beta software. When I mentioned that I was having trouble running Vista on a 3.2GHz P4 with 4GB RAM, a 512MB ATI video card with DX10.1, and a terabyte HDD, he scoffed and said that nobody at Microsoft was running Vista, not even the developers. He gave me a DVD of beta 7 and told me that even as a beta, Windows 7 was "so much better than Vista." I accepted his disc (which expires on August 1), and went to the Windows Mobile (WM).

    This kiosk had a good looking young man who was part of the product management group for WM 6.5 and very knowledgeable about the product. When I told him that I was a WM developer, he listened attentively as I explained my frustration in trying to program the WM6 smartphone camera to work. His smile faded as he explained that Microsoft had failed to thoroughly test the OEMs for WM5, WM6 and WM6.1. As a result, the DirectShow APIs for many phones were not fully/correctly implemented. He showed me a web page - http://studierstube.icg.tu-graz.ac.at/handheld_ar/camera_phones.php - that explained the problem phones. Then I asked, "will this be fixed in the coming 6.5 release?" He shook his head and replied, "no, not until WM7." I thanked him for his candor and moved onto Live Search.

    At Live Search, a bright young man was touting the performance of their latest version and let me test it against Google, where it seemed to respond comparably. He talked about how his group was trying to get other parts of Microsoft to use their Live Search instead of their own, "an uphill battle." At that moment, another person walked up and asked a question, prompting him to pull out his iPhone. I reached out with my WM phone and joked, "wouldn't it be more politically correct to show this?" He responded, "oh, no. Most of my friends at work have iPhones. It's OK."

    The problems documented by Daniel Wagner's web page (above) and unmentioned on microsoft.com or msdn.com cost us three months of development time. I should have suspected; mea culpa. Our application now runs on iPhone, and we are not looking back.

    BTW, the Microsoft coffee table looks like a giant iPhone.

    1. Re:crash and burn by SpryGuy · · Score: 4, Insightful

      Just for the record, I've used Vista at work since it was released (doing .Net development and Database work on SQL Server).

      Before SP1 was released, it was a pain in the ass. Since then... not so much.

      In fact, I'm now used to Vista, and like it's extra features and perks, and find going back to XP annoying. I miss too much (the instant search everywhere, for starters, the snipping tool for another, I could go on and on) when I'm forced to use XP. And XP is so much less secure than Vista. Vista has proven to be remarkably stable and I haven't had ANY issues with viruses or trojans (not so, every XP install I've had over the same time period). It performs well, but of course I do have 4GB of memory, and wouldn't dream of saying anyone run Vista on less than 2GB.

      The trash-talking of Vista is, at this point, mostly habit based on old info. It's ridiculous. ANYTHING that will help get people off XP and onto the newer more secure OS's (hopefully Win7) is a GOOD THING.

      Hopefully most people won't need to use this new virtual XP VM in a regular way, in perpetuity. It can be and should be used as solely a stepping stone to get people on Win 7 and off XP, giving time for any software that refuses to run on Win7 to be updated or replaced. Mostly, the "XP Compatibility Mode" works well. For those apps that are just so badly written and so insecure and obsolete that they can't run even under that, this new XP VM provides a solution.

      Of course, if software had been written correctly in the first place, then it'd run on Win7 correctly without issue.

      Of course, one of the more laughable things is that SQL Server 2000, Microsoft's own product, won't run on Vista or Win7. Of course, it's a crappy database and nobody should be using it at this point... but there you go :-)

      --

      - Spryguy
      There are three kinds of people in this world: those that can count and those that can't
  15. Dual OS like Dual Core? by dlevitan · · Score: 5, Funny

    So when Intel and AMD couldn't increase the speed of their processors any more, they decided to introduce dual core chips. Does this mean that Microsoft has decided they couldn't slow down computers any more with Windows 7 and is now planning on shipping a dual OS system to ensure slow performance?

  16. Re:Yes but ... by Kaboom13 · · Score: 4, Insightful

    That's because making a living off Window's security deficiencies is for all intents and purpose the same thing as making a living off Computer security deficiencies. Sure, there are aspects of the Windows security model that downright suck. But the reality is every system has security vulnerabilities out the ass. Whether Windows or Linux or BSD or what have you has more is up for debate, but the definite thing is that security is an active, evolving process, and whatever OS is used by the majority of the world is going to be under constant attack.

    I suppose if builders didn't build houses so damn easy to get into, we wouldn't need locks (and thus lock makers), and alarms, and cops and security guards, and fences, and a neighborhood watch. After all, the home builder made the house, he should guarantee it in perpetuity as an impenetrable fortress. Even if the owner ignores his recommendations, and leaves the doors unlocked and the windows open, it should still be secure. And despite the need for security, it must still be convenient for the owner and guests to enter and exit at will, pleasant to look at, and maintainable by an owner who has no knowledge of experience in houses.

    You act as if security is easy, and MS could accomplish it if only it tried a little harder. That's not the reality. MS deserves flack for any number of legitimate grievances. They took way to long to take security seriously (basically the entire time from XP's release to Vista was spent making massive security improvements to catch up to where they should have been), they use abusive business practices to encourage lock-in. They make bizarre and frankly retarded attempts at anti-piracy like activation/genuine advantage (if there ever was a drm measure that does nothing to even slow pirates down, and annoys the crap out of legit purchasers, its Windows Activation).

    But acting like MS and MS alone must bear the burden for ensuring the security of pc's, is ridiculous.

  17. Stick your head out of the sand sometime by TheLink · · Score: 5, Informative

    Go ahead stay in the reality distortion field and drink the kool-aid.

    It's NOT the contest that proves it. Just read what the guy says and go investigate to see if what he is saying is true.

    Just see: http://blogs.zdnet.com/security/?p=2941
    and: http://news.cnet.com/8301-10784_3-9759132-7.html

    Quote:

    "With my Safari exploit, I put the code into a process and I know exactly where it's going to be. There's no randomization. I know when I jump there, the code is there and I can execute it there. On Windows, the code might show up but I don't know where it is. Even if I get to the code, it's not executable. Those are two hurdles that Macs don't have."

    You don't have to be a genius to figure it out. OSX doesn't have the same protections. It doesn't even have the protections Windows XP SP2 has and that came out 5 years ago.

    If you don't believe me, just get the opinion of any of the top security researchers on the security of OSX compared to XP/Vista.

    The reason why OSX is not exploited as much as windows is it is the equivalent of a house in a small village. Hardly anyone would bother break in even if the door is unlocked.

    There's no point creating a tiny network of zombies. A huge network is where the money is.

    If I were a malware writer I'd be rubbing my hands with glee if OSX's market share goes up.

    Apple makes cool stuff, but they don't make secure stuff.

    --
  18. Re:Yes but ... by TheLink · · Score: 5, Informative

    And guess who is responsible for the code quality of quicktime? Apple.

    OSX is swiss cheese too. It has dozens of setuid programs. It has no "DEP" - something that Windows XP had 5 years ago with service pack 2.

    It's not just me claiming that. I know others who would say the same thing.

    Both Charlie Miller and "Nils" say OSX is easier to exploit.

    http://voices.washingtonpost.com/securityfix/2009/03/mac_os_x_top_target_in_browser.html

    http://news.cnet.com/8301-10784_3-9759132-7.html

    http://blogs.zdnet.com/security/?p=2941

    Quotes:

    "It's getting pretty hard to do a lot of this stuff on Windows Vista and Windows 7," Nils said. "Especially when a lot of people who stayed with [Windows XP] switch to Windows 7 because they didn't want Vista, the bad guys may start to figure out they can more easily exploit these bugs more reliably on a Mac."

    "Mac OS X has some ASLR but not much, and there is no DEP in OS X," Miller said. "My exploit relied on exploit code being in certain spot, and that it would [execute], and in Vista neither of those things would have happened."

    --