Changes to Microsoft Windows between r1 and r2

'''[http://www.microsoft.com/ | Microsoft](R) [http://www.microsoft.com/windows/ | Windows](R)'''

See also [Win32]

History:
   1. DOS-based line:
   1. December 1980: [http://en.wikipedia.org/wiki/86-DOS | 86-DOS] v0.33 -->    11. December 1980: [http://en.wikipedia.org/wiki/86-DOS | 86-DOS] v0.33
   1. April 1981: [http://en.wikipedia.org/wiki/86-DOS | 86-DOS] v1.0 -->    11. April 1981: [http://en.wikipedia.org/wiki/86-DOS | 86-DOS] v1.0
   1. July 1981: [http://en.wikipedia.org/wiki/86-DOS | 86-DOS] v1.14/[http://en.wikipedia.org/wiki/MS-DOS | MS-DOS] v1.01 -->    11. July 1981: [http://en.wikipedia.org/wiki/86-DOS | 86-DOS] v1.14/[http://en.wikipedia.org/wiki/MS-DOS | MS-DOS] v1.01
   1. March 1982: [http://en.wikipedia.org/wiki/MS-DOS | MS-DOS] 1.25 -->    11. March 1982: [http://en.wikipedia.org/wiki/MS-DOS | MS-DOS] 1.25
   11. ''... skip a few ...''
   11. Windows 3.0
   11. Windows 3.1
   11. Windows 3.11 (386-only)
   11. Windows 95
   11. Windows 95 OSR1
   11. Windows 98
   11. Windows 98 SE
   11. Windows ME

Legend

     Only in r1
     Only in r2
     -->      Modified slightly between r1 and r2