Windows Vista is the name of a major version of Microsoft Windows, a proprietary graphical operating system used on personal computers, including home and business desktops, notebook computers, and media centers. Prior to the announcement of the Vista name on July 22 2005, it was known by its codename Longhorn, after the Longhorn Saloon, a popular bar in Whistler, British Columbia. As of July 2006, Windows Vista is in beta testing; Microsoft has stated the scheduled release dates for Windows Vista are currently November 2006 for business editions, and January 2007 for consumer editions.A press release detailing the release schedule was posted to Microsoft's PressPass website on March 21 2006: Microsoft Updates Windows Vista Road Map These release dates come more than five years after the release of Windows XP, Microsoft's current consumer and business operating system, making it the longest time span between releases of Windows.
According to Microsoft, Windows Vista has hundreds of new features, such as an updated graphical user interface and visual style dubbed Windows Aero, improved searching features, new multimedia creation tools such as Windows DVD Maker, and completely redesigned networking, audio, print and display sub-systems. Microsoft claims that Vista also aims to increase the level of communication between machines on a home network using peer-to-peer technology, making it easier to share files, password settings, and digital media between computers and devices. For developers, Vista introduces version 3.0 of the .NET Framework, which aims to make it significantly easier for developers to write high-quality applications than with the traditional Windows API. High-end editions of Vista are expected to include Microsoft's Virtual PC, so that previous versions of Windows can be run simultaneously with Windows Vista on the same machine, with a view to running applications incompatible with Windows Vista.
Microsoft's primary stated goal with Vista, however, has been to improve the state of security in the Windows operating system. Amongst the many common criticisms of Windows XP, the most significant has been its commonly exploited security vulnerabilities, and an overall susceptibility to malware, viruses and buffer overflows. In light of this, Microsoft chairman Bill Gates announced in early 2002 a company-wide 'Trustworthy Computing initiative' which aims to incorporate security work into every aspect of software development at the company. Microsoft claimed it prioritized improving the security of Windows XP and Windows Server 2003 above finishing Windows Vista, which has significantly delayed its completion.
Microsoft started work on their plans for "Longhorn" in May 2001, some months before the release of Windows XP. It was originally expected to ship sometime late in 2003 as a minor step between Windows XP and "Blackcomb" (now known as Windows "Vienna")."Longhorn Gores Blackcomb; Microsoft OS; Product Development." Client Server News, July 30, 2001 Gradually, "Longhorn" assimilated many of the important new features and technologies slated for "Blackcomb", resulting in the release date being pushed back a few times. Many of Microsoft's developers were also re-tasked with improving the security of Windows XP. Faced with ongoing delays and concerns about feature creep, Microsoft announced on August 27 2004 that it was making significant changes. "Longhorn" development basically started afresh, building on the Windows Server 2003 codebase, and re-incorporating only the features that would be intended for an actual operating system release. Some previously-announced features, such as WinFS and NGSCB, were dropped or postponed.
After "Longhorn" was named Windows Vista, an unprecedented beta-test program was started, which has involved hundreds of thousands of volunteers and companies. In September 2005, Microsoft started releasing regular Community Technology Previews (CTP) to beta testers. The first of these was build 5219, distributed among 2005 PDC attendees, and has been released to Microsoft Beta testers and MSDN subscribers. Subsequent CTPs have introduced most of the planned features for the final product, as well as a number of changes to the user interface, based in large part on feedback from beta testers.
Windows Vista was deemed feature-complete with the release of build 5308 CTP, released on February 22 2006, and much of the remainder of work between that build and the final release of the product will focus on stability, performance, application and driver compatibility, and documentation. Windows Vista Beta 2 was released to testers on May 23 2006 and to the general public on June 7 2006 through Microsoft's Customer Preview Program, with the program running until the beginning of July. It was offered for free either via download from their web site or by ordering a DVD. Microsoft hints that there will be release candidates for Windows Vista by promising a Release Candidate 1 DVD kit when it becomes available for those who order the second beta's DVD.
Microsoft's roadmap indicates that the current planned "release to manufacturing" date is on or before October 25 2006.
Windows Vista has a long list of new features, changes, and improvements. While a complete list has not been published by Microsoft yet, recent development builds of Windows Vista, Microsoft employee blogs, and published documentation have collectively identified most of the features that Microsoft intends to include when the product is released.
Microsoft labels the new key technologies in this version of Windows as "The Pillars of Vista":
There are also significant new development APIs in the core of the operating system, notably the inclusion of the .NET Framework, completely re-architected audio, networking, print, and video interfaces, major changes to the security infrastructure, improvements to the deployment and installation of applications ("ClickOnce" and Windows Installer 4.0), new device driver development model ("Windows Driver Foundation"), Transactional NTFS, and major updates to many core subsystems such as Winlogon and CAPI.
There are some issues for software developers using some of the graphics APIs in Vista. Games or programs which are built on Vista's version of Direct3D, 10, will not work on prior versions of Windows, as Direct3D 10 is not backwards-compatible with Direct3D 9. Also, according to a Microsoft Blog, there are two OpenGL paths under Vista. An application can use the default implementation, frozen at OpenGL version 1.4. An application can use an ICD as well, which comes in two flavors: legacy and Vista-compatible. A legacy ICD functions as specified above: the activation of one will turn off the desktop compositor. A Vista-compatible ICD, made by IHVs using a new internal API path provided by Microsoft, will be completely compatible with the desktop compositor. Given the statements made by the two primary OpenGL ICD vendors (ATi and nVidia), it would be reasonable to expect both to provide full Vista-compatible ICDs for Windows Vista."
WinFS was the codename for a planned relational database layer built on top of NTFS, and was loosely based on SQL Server 2005. In August 2004, Microsoft announced that WinFS would not be included in Windows Vista. This was due to time constraints in developing the technology. Microsoft has been working on this technology since the mid 1990s. For a time, Microsoft had said that WinFS would be released separately of Vista, but on June 23 2006, Microsoft announced that they decided to integrate some of the developed features into the next versions of ADO.NET and SQL Server, effectively cancelling the separate WinFS project.
Vista's premier interface, Windows Aero, is built on a new desktop composition engine called Desktop Window Manager. Windows Aero, also known as Aero Glass, adds support for 3D graphics (known as Flip 3D), translucency, window animation and other visual effects, and is intended for mainstream and high-end graphics cards and has various hardware requirements such as:
Windows Aero is not planned for inclusion in the Home Basic and Starter editions, and both Windows Aero and Flip 3D require Windows Genuine Advantage (WGA) to be passed.
Vista also offers other Aero modes. The Standard mode is a variation of Windows Aero without the transparencies, window animations, and other advanced graphical effects such as Flip 3D. Like Windows Aero, it uses the Desktop Compositing Engine, and has generally the same video hardware requirements as Windows Aero. This is the default mode for the Windows Vista Home Basic Edition. The Starter (developing markets) edition does not support this mode. The Basic mode uses the new desktop composition although it has an aspect similar to Windows XP's visual style with the addition of subtle animations such as those found on progress bars, with increased stability and smooth window re-draw. It does not feature transparency or translucency, window animation, Flip 3D or any of the functions provided by the DWM. The Basic mode requires Windows XP Display Driver Model (XPDM) or WDDM drivers as well as the graphics card requirements of Windows XP or 2000.
A more basic interface, Windows Classic, is available as well. An option for corporate deployments and upgrades, Classic has an interface very similar to the appearance of Windows 2000, and does not use the new Desktop Compositing Engine; Flip 3D, live window previews, and tearing-free window dragging are therefore not supported. Classic requires Windows XP Display Driver Model (XPDM) or WDDM drivers and the graphics card requirements of Windows 2000.
| Vista Capable | Vista Premium Ready | |
|---|---|---|
| Processor | 800 MHz | 1 GHz |
| Memory | 512 MB RAM | 1GB RAM |
| GPU | DirectX 9 capable | DirectX 9 capable GPU with Hardware Pixel Shader v2.0 and WDDM Driver support |
| GPU Memory | 32 MB RAM | 128 MB RAM up to 1280x1024 (256 MB+ for greater resolutions) |
| HDD | 20GB | 40GB |
| HDD free space | 15GB | 15GB |
| Other drives | CD-ROM | DVD-ROM |
During Vista's early testing stages, the ATI Radeon 9800 Pro and the NVIDIA GeForce FX 5900 were the only cards compatible with Windows Aero. Since then, support has been extended to most DirectX 9 graphics cards; as of Vista Beta 2 the NVIDIA GeForce FX family and later, the ATI Radeon 9500 and later, Intel's GMA 950 integrated graphics, and a handful of VIA chipsets and S3 Graphics discrete chips are supported.http://www.msbetas.org/?page=vistareadygpus Though some XGI Technology Volari chips were DirectX 9 (including the Volari V3XT which was available in PCI cards), with XGI's exit from the graphics card business it appears none of its chips are supported as of Vista Beta 2.
Microsoft has not specifically stated whether an AGP or PCI Express (PCIe) video card is a requirement for Windows Aero (though they were once strongly suggested), but they are preferable to PCI video due to their greater bandwidth. However, some PCI cards are available which are compatible with Windows Vista:
The three retail editions (Home Basic, Home Premium, and Ultimate) of Windows Vista will ship on the same DVD. The features of the Home Premium and Ultimate editions may be "unlocked" at any time by purchasing a one-time upgrade license through a Control Panel tool called Windows Anytime Upgrade. The Business edition will also be upgradable to Ultimate. Such licenses will be sold by Microsoft's partners and OEMs, but not directly by Microsoft.
One of the most common criticisms concerns the integration of new forms of Digital Rights Management into the operating system, specifically High-Bandwidth Digital Content Protection (HDCP) and the Image Constraint Token (ICT), which reduces the quality of high-definition video content if the video card and monitor are not HDCP-enabled. Video cards supporting HDCP did not become available until June 2006. All HD DVD and Blu-ray players must follow AACS guidelines and restrict the resolution for outputs without HDCP to 960×540 provided an ICT flag is given. The decision to set the flag to restrict output ("down-convert") is left to the content provider. The criticism against HDCP may be misplaced, however, as it is still unclear as to whether all high definition media will be subject to HDCP protection, and even if it is, Microsoft will not be the only vendor enforcing support, as Digital Rights Management is largely decided by content providers, not platform providers. Movie studios are apparently in agreement to not include the ICT flag on any HD DVDs or Blu-ray Discs until at least 2010, or possibly even 2012.
The new User Account Control (UAC) security technology also causes concern among reviewers. While Yankee Group analyst Andrew Jaquith believes that critical security vulnerabilities may be "reduced by as much as 80 percent", he also noted that "while the new security system shows promise, it is far too chatty and annoying". Veteran Microsoft reporter Paul Thurrott agrees, contending that the implementation of UAC in Vista build 5342 is a "sad, sad joke" given the number of dialog boxes that one must wade through to do simple tasks. However, Thurrott appears to have retracted those comments, claiming in his Windows Vista Beta 2 review, that UAC had been "completely overhauled" and is "less annoying," although he acknowledges that Microsoft is "still struggling to find a balance between security and annoyance."
Another criticism is a claim by some that Windows Vista emulates specific features in Apple Computer's Mac OS X. Scott Spanbauer of PCWorld jokes about a perceived "striking similarity" between Vista's Aero visual effects, icon design, buttons and those of Mac OS X's Aqua. Paul Thurrott of WindowsITPro, made similar comments in his review of build 5308, while also suggesting that some of the new applications "appear to be directly, ahem, influenced by similar applications in OS X." John Rizzo of eWeek has noted that Vista is incorporating features which OS X has had for some time, such as fast searching and Smart Folders functionality. This has led some to the conclusion that Aero is a deliberate imitation of Aqua.
The graphics effects from Aero are often criticized as creating too high a decrease in speed from Windows XP. Other accelerated desktop environments, such as Xgl (with Gnome or KDE on a UNIX-like OS) or Mac OS X run on less demanding hardware. In the Beta 2 preview, there is much less overhead required than with earlier betas, but it is still apparent, even in Microsoft's games.
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