Windows IBM

Windows IBM is a Computer Software, product by IBM and Microsoft released on May 6, 1999, there are many versions such as:
 * Pre-Alpha 1 (January 13, 1996)
 * Pre-Alpha 2 (September 30, 1996)
 * Alpha (June 24, 1997)
 * Beta 1.00 (December 1, 1997)
 * Beta 1.01 (April 8, 1998)
 * Beta 2 (October 31, 1998)
 * Pre-Release (March 5, 1999)
 * Windows IBM 1 (May 6, 1999)
 * Windows IBM 2 (January 7, 2000)
 * Windows IBM 3.0 (May 22, 2001)
 * Windows IBM 3.1 (December 28, 2001)
 * Windows IBM 3.2 (July 15, 2002)
 * Windows IBM 3.3 Beta (November 6, 2002)
 * Windows IBM 3.3 (March 26, 2003)
 * Windows IBM Laptop Edition (August 1, 2003)
 * Windows IBM 4 Build 3768 (June 31, 2004)
 * Windows IBM 4 Build 1199 (February 28, 2005)
 * Windows IBM 5 (September 29, 2005)

Codename: Genek
Genek is a Codename of Windows IBM released on July 11, 1995, which it has a builds:
 * Build 991
 * Build 2742
 * Build 5078
 * Build 3729
 * Build 2143
 * Build 4003
 * Build 4013
 * Build 1825
 * Build 756
 * Build 3011