Windows 4.x Series

Windows 4.0 is a cancelled version of Windows 94. It has versions like:
 * 1) Windows 4.0 Pre-Alpha
 * 2) Windows 4.0 Alpha
 * 3) Windows 4.0 Beta 1-2
 * 4) Windows 4.0 Final Beta Release
 * 5) Windows 4.0
 * 6) Windows 4.1
 * 7) Windows 4.11 (For Workgroups)
 * 8) Windows 4.2 (Chinese)
 * 9) Windows 4.3
 * 10) Windows 4.10
 * 11) Windows 4.100
 * 12) Windows 4.Infinity
 * 13) Windows 4.1000
 * 14) Windows 4.10000
 * 15) Windows 4.100000
 * 16) Windows 4.1000000
 * 17) Windows 4.3600000
 * 18) Windows 4.1EOP