Development

edit
Build Number Date Description Released as
669 Unknown First build of codename "Memphis"
1351 15 December 1996 Referred to as Windows 97
1387 7 February 1997 First beta Windows Memphis Beta
1400 25 February 1997
1423 8 April 1997 Developer's release
1488 26 April 1997
1511 30 May 1997
1525 26 June 1997
1532 26 June 1997
1546 31 July 1997 Second beta. Expired 31 January 1998
1602 3 October 1997 the first build to be able to upgrade from Windows 3.1x. Expired on 31 March 1998 Windows 98 Beta
1629 12 December 1997 Expired on 24 August 1998
1691 16 February 1998 Expired on 31 December 1998 Windows 98 Release Candidate
1723.4 10 April 1998 Expired on 1 April 2001
1900.6 28 April 1998 Expired on 1 April 2001
1998 25 June 1998 Final version Windows 98
2183 7 April 1999 Expired 30 January 2000
2222a 5 May 1999 Sold more copies than Windows 98, and offered improved reliability and compatibility with newer devices. Windows 98 Second Edition