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Windows 7's XP Mode has been improved in a new release candidate. This innovative virtualization feature allows applications to be run within the XP guest OS and seamless integrate with the Windows 7 environment. The front browser is running in XP, while the back is running in Windows 7.  (Source: LILkillaBees Blog)
Windows fans are invited to test out the innovative new OS feature

One of Windows 7's most interesting features is going to be the Windows XP mode, available on Professional and Ultimate editions.  Typically, virtual machines are only supported via separately purchase software from vendors such as VMWare or Microsoft.  This limits virtualization's audience and appeal, leaving out many everyday users.  So Microsoft decided to do something unique and bundle Windows 7 with a virtual machine with Windows XP inside.  This allowed them not only to bring virtualization to the masses, but also to seamlessly integrate compatibility for legacy applications.

The feature, however, was only in rough form in the beta candidate and previous release candidate builds.  Yesterday Microsoft release a new release candidate that at last added a near-finalized version of this functionality.  The build is available here and runs Windows XP SP3. 

Aware of security risks, Microsoft has accompanied the build with a warning that users should install anti-malware and antivirus software to protect Windows XP.  It has been speculated that malicious users could exploit the virtual machine's lack of certain security features -- such as ASLR (Address Space Layout Randomization) or an Internet Explorer Protected Mode -- to perform guest-to-host attacks.  This problem is minimized by the fact that the install comes with a firewall and that Microsoft will be offering free antivirus support for XP as well as Vista and Windows 7 this fall (a second beta is expected to drop soon).

Brandon LeBlanc, a Windows communications manager at Microsoft comments on the new RC build, stating, "Windows XP Mode is specially designed for small and medium-sized businesses to help ease the migration process to Windows 7 by providing additional compatibility for their older productivity applications. The newly updated Windows XP Mode now works with the RC and RTM versions of the Windows 7 Professional, Ultimate and Enterprise SKUs."

The differences in functionality of the new XP Mode and the old are subtle, but significant. Windows XP applications running on the Windows 7 task bar can now be accessed by right clicking.  Disk sharing between Windows 7 and Windows XP mode can now be disabled and users can choose where there Windows XP differencing files are stored.  USB devices can now operate within Windows XP without needing to go into fullscreen mode, useful for accessing content from programs like Word 2003 running in XP Mode.  Finally, a tutorial about XP Mode is now included, a great feature for new users.

Tom Quillin, director of Intel vPro Ecosystem Development lauds the feature, praising that its not only a fun toy for home users, but a valuable asset to businesses.  He states, "The increasing prevalence worldwide of PCs based on Intel Core 2 processors with Intel Virtualization Technology is enabling a variety of new applications that provide business opportunities for greater manageability, security and cost reduction. Used with Windows XP Mode, Intel Virtualization Technology helps small- and medium-sized businesses migrate more efficiently from Windows XP to Windows 7.

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RE: Just a thought...
By epobirs on 8/5/2009 5:42:05 PM , Rating: 2
You couldn't be more wrong.

First, consider the failure of logic in blaming hardware. Vista runs just fine on plenty of machines that were produced before Vista was in beta. The sole issue in most cases where it doesn't run well is memory consumption. Some older machines lacked the ability to take much RAM above the 512 MB that was common for several years, and thus are bad Vista candidates even though the memory upgrade itself would be quite cheap.

The vast majority of software incompatibility issues are due to Vista's more stringent requirement for programming practices. When XP was released, Microsoft also published a guide to their preferred programming practices for better reliability and security. They also promised that apps that followed these guidelines would be viable for a long time to follow. They kept that promise. Software that complies with the guidelines runs perfectly on Vista with very few exceptions.

After years of getting blamed for the results of third party developer's bad coding practices, MS made some major changes in Vista compared to XP. Several things which had previously been condemned but allowed to run were no longer given that allowance. Vista flat out says no, you can't do that crap here. This is why no version of QuickBooks before Vista's release would run. Intuit did some really rotten stuff with the registry as a hack to enable interaction with other software instead of creating a proper infrastructure for the purpose. This was a really bad practice and Microsoft was well overdue to stop iy being done.

A lot of other examples are in-house proprietary apps that are critical to the businesses that original contracted their creation. The use of bad coding practices was endemic among these and that meant Vista was a no-go unless they could run them under XP in a VM. Two big Vista deployment I worked in were at companies big enough that their licensing with Microsoft allowed this to be done without any great additional cost. But for smaller companies this is a significant expense and involves some complexity for the users.

XP Mode solves that very well. There is a critical app that is widely used by convalescent hospitals to produce their Medicare billing. It's pretty ugly and can't even install on Vista, never mind run on it. I've already tested it with the XP Mode beta and it works perfectly, integrating with the Win7 desktop in a way that require nearly no training of existing users.

For me and my clients, XP Mode is a huge WIN .

"I'm an Internet expert too. It's all right to wire the industrial zone only, but there are many problems if other regions of the North are wired." -- North Korean Supreme Commander Kim Jong-il
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