solidified Word's marketplace dominance. WinWord 6.0 came out in 1993 and was designed for the newly released Windows 3.1. The early versions of Word also included copy protection mechanisms that tried to detect debuggers, and if one was found, it produced the message "The tree of evil bears bitter fruit. Only the Shadow knows. Now trashing program disk." and performed a zero seek on the floppy disk (but did not delete its contents). After MacWrite, Word for Macintosh never had any serious rivals, although programs such as Nisus Writer provided features such as non-continuous selection, which were not added until Word 2002 in Office XP. Word 5.1 for the Macintosh, released in 1992, was a very popular word processor, owing to its elegance, relative ease of use and feature set. However, version 6.0 for the Macintosh, released in 1994, was widely derided, unlike the Windows version. It was the first version of Word based on a common code base between the Windows and Mac versions; many accused the Mac version of being slow, clumsy and memory intensive. 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 the three versions for DOS, Macintosh, and Windows (where the previous version was Word for Windows 2.0). There may have also been thought given to matching the current version 6.0 of WordPerfect for DOS and Windows, Word's major competitor. However, this wound up being the last version of Word for DOS. In addition, subsequent versions of Word were no longer referred to by version number, and were instead named after the year of their release (e.g. Word 95 for Windows, synchronizing its name with Windows 95, and Word 98 for Macintosh), once again breaking the synchronization. When Microsoft became aware of the Year 2000 problem, it released the entire DOS port of Microsoft Word 5.5 instead of getting people to pay for the update. As of August 2022, it is still available for download from Microsoft's web site. Word 6.0 was the second attempt to develop a common code base version of Word. The first, code-named Pyramid, had been an attempt to completely rewrite the existing product. It was abandoned when Chris Peters replaced Jeff Raikes at the lead developer of the Word project and determined it would take the development team too long to rewrite and then