* Windows 2000 or later, CE, Mobile

Then Windows 2000 Server edition, and revised to extend functionality and improve administration in Windows Server 2003.

Operating systems that supported Alpha included OpenVMS ( previously known as OpenVMS AXP ), Tru64 UNIX ( previously known as DEC OSF / 1 AXP and Digital UNIX ), Windows NT ( until 4. 0 SP6 and Windows 2000 RC1 ), GNU / Linux ( Debian GNU / Linux, Gentoo Linux and Red Hat Linux ), BSD UNIX ( NetBSD, OpenBSD and FreeBSD up to 6. x ), as well as the L4Ka :: Pistachio kernel.

A Microsoft Windows ( 2000 or newer ) port was made available starting with the 2. 2. 0 series.

In hindsight, Cairo was a much more difficult project than Microsoft had anticipated and, as a result, NT and Chicago would not be unified until Windows XP — albeit Windows 2000, oriented to business, had already unified most of the system ’ s bolts and gears, it was XP that was sold to home consumers like Windows 95 and came to be viewed as the final unified OS.

This problem plagued the NT line all the way through Windows 2000.

Microsoft released Windows 2000 in February 2000.

Windows 2000 is also the last NT-kernel Windows operating system to lack product activation.

While Windows 2000 upgrades were available for Windows 95 and Windows 98, it was not intended for home users.

* Windows 2000 Professional

* Windows 2000 Server

* Windows 2000 Advanced Server

* Windows 2000 Datacenter Server

* Windows 2000 Advanced Server Limited Edition

* Windows 2000 Datacenter Server Limited Edition

In September 2000, Microsoft introduced Windows Me ( Millennium Edition ), which upgraded Windows 98 with enhanced multimedia and Internet features from Windows 2000.

Also, a new version of Asteroids was developed for PlayStation, Nintendo 64, Windows, and the Game Boy Color in the late 1990s.

Tridgell was a major developer of the Samba software, analysing the Server Message Block protocol used for workgroup and network file sharing by Microsoft Windows products.

The first Windows NT-based operating system to receive AGP support was Windows NT 4. 0 with service pack 3, introduced in 1997.

Active Directory was previewed in 1999, released first with Windows NT server.

Additional improvements were made in Windows Server 2003 R2, Windows Server 2008 and Windows Server 2008 R2, and with the release of the latter the domain controller role was renamed Active Directory Domain Services.

Worst of all, the highest revenue earner of the combined company was dBASE with no Windows version ready.

Borland had had an internal project to clone dBASE which was intended to run on Windows and was part of the strategy of the acquisition, but by late 1992 this was abandoned due to technical flaws and the company had to constitute a replacement team ( the ObjectVision team, redeployed ) headed by Bill Turpin to redo the job.

WordPerfect itself was struggling with a late and troubled transition to Windows.

The eventual joint company effort, named Borland Office for Windows ( a combination of the WordPerfect word processor, Quattro Pro spreadsheet and Paradox database ) was introduced at the 1993 Comdex computer show.

BeOS was positioned as a multimedia platform which could be used by a substantial population of desktop users and a competitor to Mac OS and Microsoft Windows ( Linux was not relevant as a desktop OS at the time ).

BeOS PE could be started from within Microsoft Windows or Linux, and was intended to nurture consumer interest in its product and give developers something to tinker with.

Software can be quite a profitable industry: Bill Gates, the founder of Microsoft was the richest person in the world in 2009 largely by selling the Microsoft Windows and Microsoft Office software products.

As that history implies, CCL was written for the Macintosh, but Clozure CL now runs on Mac OS X, FreeBSD, Linux, Solaris and Windows.

The next step was to attempt to bootstrap the compiler on a Windows system, requiring sufficient emulation of Unix to let the GNU configure shell script run.

By 1996, other engineers had joined in, because it was clear that Cygwin would be a useful way to provide Cygnus ' embedded tools hosted on Windows systems ( the previous strategy had been to use DJGPP ).

However, the battle was in vain, as neither platform captured a significant share of the world computer market and only the Apple Macintosh would survive the industry-wide shift to Microsoft Windows running on PC clones.

ClearType was later introduced as an operating system feature in Windows XP, where it was kept turned off by default.

This was a version of Windows 2. 1 adapted for the 80386 processor.

Stand-alone official AIM client software includes advertisements and is available for Microsoft Windows, Windows Mobile, Mac OS, Mac OS X, Android, iOS, BlackBerry OS.

Some apps such as Microsoft Office are available in versions for several different platforms ; others have narrower requirements and are thus called, for example, a Geography application for Windows or an Android application for education or Linux gaming.

Several open-source and proprietary alternatives are available for simultaneous access to both Windows and UNIX environments on the same hardware.

OpenEuphoria is currently available for Microsoft Windows, Linux, OS X and three flavors of * BSD.

Support for SNI is available since Firefox 2, Opera 8, Safari 2. 1, Google Chrome 6, and Internet Explorer 7 on Windows Vista.

This version was the precursor to the multimedia features available in Windows 3. 1 and later, and was part of Microsoft's specification for the Multimedia PC.

Around the same time, Microsoft released Windows for Workgroups ( WfW ), which was available both as an add-on for existing Windows 3. 1 installations and in a version that included the base Windows environment and the networking extensions all in one package.

Many of the new features were available from the Windows Update site as updates for older Windows versions ( System Restore and Windows Movie Maker were exceptions ).

Windows XP is available in a number of versions:

Windows Server 2003 is available in six editions:

Microsoft has said that Windows Server 2012 was available on 4 September 2012 and Windows 8 will be available on October 26, 2012.

The first program is available for Windows, Mac and Linux while the second one can be used through a simple Java interface.