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Windows 7 To Include "Windows XP Mode"

Z80xxc! writes "Paul Thurrott's WinSuperSite reports that Windows 7 will include a built-in virtual machine with a fully licensed copy of Windows XP Professional SP3. The VM runs in a modified version of Virtual PC, and applications running in the VM can interact directly with the host operating system as if they were running on the Windows 7 installation itself. While details are scarce for now, it looks as if this feature will only be available as a (free) addon for Professional, Enterprise and Ultimate editions of Windows 7. Also, a processor supporting hardware virtualization will be required, indicating that this is perhaps aimed more at power users and corporate users, rather than consumers. Microsoft confirmed the feature last night."

14 of 364 comments (clear)

  1. Wait a second by downix · · Score: 5, Interesting

    if it will run XP mode software, wouldn't that mean XP style viruses now have a key right into the system?

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  2. This has been a long time coming by DavidChristopher · · Score: 4, Interesting

    ... one of the drawbacks of the WIndows platform - from an development and engineering point of view - is that it's backwards compatible all the way back to (if I'm not mistaken) Windows 1.0. That's an insane codebase to be dealing with. By bundling an XP VM with Win7, they can- for the first time - take the backwards compatibility crap out of Windows and concentrate on providing a stable OS.

    Isn't that essentially what Apple did with the transition from 68000 series chips to PowerPC, from OS 9.x to OS 10, and then again from Power PC to Intel?

    I've believed this was a necessity for quite a while.

    D

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  3. Won't solve a whole lot by SilentChris · · Score: 5, Interesting

    Unfortunately, while this is a long overdue solution that other companies have used fine before, but it's going to prove problematic for Microsoft. Things that won't work (and Joe User will try to do anyway):

    1.) Install their XP-compatible Antivirus program. "It said on the Windows 7 box that I could run old programs!"
    2.) Install a printer which works on XP only. "The printer box said it works on Windows. Why can I only print from some programs (the older ones seem to work)?"
    3.) Play an old game at reasonable speed. "I installed Super Hardware Killer Shooter for Windows XP and the 3D is running really slow!"

    Virtualization is a great thing. I use it work all the time and love it. The public doesn't quite "get it" yet. They're going to see some things work, some things not and wonder why the hell that is. It happened when Apple moved to OS X, but the user base was much smaller so the complaints were less.

    Until someone creates a hypervisor which is presented in a completely transparent way to the OS, in that things difficult to virtualize (e.g. video card hardware) run at normal speeds, it's just going to appear to the user "every time I run an old program, either it's too slow or it doesn't work".

  4. Not dead yet! by Minupla · · Score: 4, Interesting

    So does this mean M$ will be extending the fully supported period for XP again, as it will be shipping with W7?

    Min

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  5. Will it include P2V? by snsh · · Score: 4, Interesting

    This would be great if Microsoft included a friendly P2V tool like platespin or vconverter. Then when people buy a new PC, it becomes short work to P2V their old XP system into a VM sitting inside their new system. A lot of people hate to upgrade for fear of losing their old files and settings.

  6. Re:And who needs it most? by gadget+junkie · · Score: 3, Interesting

    I think companies are more likely to depend on old software that runs only on XP. So they target the correct users indeed.

    Most non-corporate users only use programs to browse the tubes, print documents, send email and view photo's, nothing that depends on XP :)

    Do not forget gamers/power users. I loathe the fact that I need a killer machine, to run a killer OS, to run Call of duty about at the same Frame per second rate as my old machine, with a few bells and whistles involved that I do not care particularly about.I'd end up paying 1.000 bucks on hardware, 250 on OS, and 50 on the game just to stay where I am now.

    One other consideration is that these strategy of enabling XPsp3 in windows 7 will surely put some noses out of joint, plus leaving the door open for interesting legal questions. Imagine this scenario: in an all win XP sp3 outfit, the company buys half a dozen copies of win7. are these particular associated copies of XP officially supported while all the legacy copies aren't?

    Remember: if a company has a particular, mission critical application that runs in XP, and this application is "good enough/fast enough" as is, the requirement of the company is "cheap xp machines with xp installed", NOT "rich win 7 machines with win7 plus a virtual machine with XP", if only because cost of hardware goes up. Given the low price of entry level hardware these days, the OS is representing a bigger slice of the pie than previously, so pressure there is higher. I would not be surprised if somebody did a "spoiling attack" claiming that all this design is a win7 tax and demanding to be able to buy legitimate XP copies....at old win xp prices.

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  7. This is a desperation measure aimed at IT guys by localroger · · Score: 3, Interesting

    I know a few people who are really well connected in Fortune 500 IT circles, and they tell me to a man that *NOBODY* is planning to move to Vista or 7 (by which they mean *NOBODY* running a very large corporate IT enterprise). They tend to have corporate security models including stations locked down in various ways that work, deployment models that work, drive reimaging procedures that work, standard desktops and toolsets that work, and legacy code that works, much of which DOESN'T work in Vista or 7. This is the reason you can still get an XP box -- MS keeps raising the bar for it, but corporate just keeps paying the freight. So this is MS next move, to try to slide these guys into 7 by letting them virtualize their XP model.

    The problem is that while this will solve some of the IT guys' problems (legacy apps, desktops, maybe security model) it will not solve what is probably the most important problem to some of them, deployment and drive reimaging. Also depending on how easy it is to break out of the emulation sandbox, they may not be happy with the security model either. When you are talking about pretty much rebuilding a network with 100,000 machines, paying an extra couple of hundred in blackmail per box for MS to let you keep using what you know works makes a lot more sense than jumping off into the void. MS may overcome some of the corporate reluctance with this ploy, particularly at smaller companies, but I don't think it's going to crack the egg they need to crack.

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  8. Requested by the Military by WED+Fan · · Score: 5, Interesting

    The U.S. Military is heavily invested in several applications that have been tested at Microsoft. (Military members do have offices in Redmond for this purpose.) Windows 7 was shown to have some issues. The USN scrapped plans to move to Vista, planned for this quarter, and decided to wait for Windows 7, but needed XP compatibility. The VM compromise was brewed up.

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  9. Re:I knew it! by dov_0 · · Score: 4, Interesting

    Probably the best enterprise marketing decision that MS has made in years...

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  10. Re:Had that for awhile now... by foniksonik · · Score: 4, Interesting

    What good is a rootkit in a VM? It'll be open just as long as the user needs to open some legacy app, won't have access to their file system, except what documents they choose to copy over temporarily and may or may not have internet access.

    Running Windows in a VM is actually the ideal solution. Do all your net connected stuff via a secure OS like Linux, then open up a few ports for the VM to run games or whatever.

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  11. Not that safe by TheLink · · Score: 3, Interesting

    In many cases (especially if virtualization is used):
    root in virtual machine + bug in your CPU and/or bug in vm software = root in host machine.

    Apparently there is an exploitable bug in intel processors. The "offsets" for the exploit might change depending on the motherboard you are using. So you better not be using a popular motherboard :).

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  12. Re:Had that for awhile now... by xouumalperxe · · Score: 4, Interesting

    Seems more like a way to do what Apple did with OS9 (aka 'classic') on OSX. Hopefully, they used the chance to remove as much back-compatibility cruft as they could, too.

  13. Re:And who needs it most? by master811 · · Score: 3, Interesting

    Rubbish, my PC (built for the equivalent of about $500 (over 2 years ago - granted I upgraded the GPU last year but that would have only added another $100 after replacing the old one) and it runs Vista perfectly fine including all the latest games.
     
    This whole thing about having to spend a fortune on hardware for vista is BS. You do NOT need to a 'killer' machine to run a 'killer' OS as you so put it.
     
    Granted it took a while for the graphics drivers for games to mature properly to the point of being similar to XP, but that happened a while ago, and on any modern (and not necessarily expensive PC), the performance difference will be minimal between Vista/7 and XP.

  14. Re:Had that for awhile now... by Thinboy00 · · Score: 3, Interesting

    won't have access to their file system, except what documents they choose to copy over temporarily

    Not true on any VM I've seen.

    VirtualBox only gives the guest access to the virtual drive and to host directories that you manually configure as "shared", which then need to be "mapped" (i.e. you have to push "map network drive" under windoze and type the right thing.). Since the system sees these directories as servers (i.e. they are assigned their own drive letters), there is no way for the system to represent the notion of the parent directory of a "shared" host directory, or indeed to know that such a thing is applicable (read: .==..~=[D-Z]:\ for such directories as far as the guest is concerned), so how do you expect the virus/rootkit/what-have-you to get out of the box you've put it in?

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