Before Windows 2000 I had been destroying . . . erm . . . working with . . . Windows 95 from 1996-1999, and Windows 98 from 1999 to 2003/2004.
Windows 2000 came at school in 2001/2002 I guess, not for long though because they changed to XP, as did we at home in 03/04 from Win98.
Sorry for the long explanation, just explaining . . . something or other, COL.