<P> The second release of Word for Mac OS, shipped in 1987, was named Word 3.0 to synchronize its version number with Word for DOS; this was Microsoft's first attempt to synchronize version numbers across platforms . Word 3.0 included numerous internal enhancements and new features, including the first implementation of the Rich Text Format (RTF) specification, but was plagued with bugs . Within a few months, Word 3.0 was superseded by a more stable Word 3.01, which was mailed free to all registered users of 3.0 . After MacWrite Pro was discontinued in the mid-1990s, Word for Mac OS never had any serious rivals . Word 5.1 for Mac OS, released in 1992, was a very popular word processor owing to its elegance, relative ease of use and feature set . Many users say it is the best version of Word for Mac OS ever created . </P> <P> In 1986, an agreement between Atari and Microsoft brought Word to the Atari ST under the name Microsoft Write . The Atari ST version was a port of Word 1.05 for the Mac OS and was never updated due to the outstanding degree of software piracy on the Atari platform . </P> <P> The first version of Word for Windows was released in 1989 . With the release of Windows 3.0 the following year, sales began to pick up and Microsoft soon became the market leader for word processors for IBM PC - compatible computers . In 1991, Microsoft capitalized on Word for Windows' increasing popularity by releasing a version of Word for DOS, version 5.5, that replaced its unique user interface with an interface similar to a Windows application . When Microsoft became aware of the Year 2000 problem, it made Microsoft Word 5.5 for DOS available for download free . As of March 2014, it is still available for download from Microsoft's web site . In 1991, Microsoft embarked on a project code - named Pyramid to completely rewrite Microsoft Word from the ground up . Both the Windows and Mac OS versions would start from the same code base . It was abandoned when it was determined that it would take the development team too long to rewrite and then catch up with all the new capabilities that could have been added in the same time without a rewrite . Instead, the next versions of Word for Windows and Mac OS, dubbed version 6.0, both started from the code base of Word for Windows 2.0 . </P> <P> With the release of Word 6.0 in 1993, Microsoft again attempted to synchronize the version numbers and coordinate product naming across platforms, this time across DOS, Mac OS, and Windows (this was the last version of Word for DOS). It introduced AutoCorrect, which automatically fixed certain typing errors, and AutoFormat, which could reformat many parts of a document at once . While the Windows version received favorable reviews (e.g., from InfoWorld), the Mac OS version was widely derided . Many accused it of being slow, clumsy and memory intensive, and its user interface differed significantly from Word 5.1 . In response to user requests, Microsoft offered Word 5 again, after it had been discontinued . Subsequent versions of Word for macOS are no longer direct ports of Word for Windows, instead featuring a mixture of ported code and native code . </P>

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