Operating System Easter Eggs

DEFINITION: The computer software "Easter Egg" is a hidden/secret code in a program, game or operating system, intended to be activated by an undocumented sequence of keystrokes and/or mouse clicks, usually revealing text, graphics, animation, developer credits, jokes, pranks etc.
And here they are, by popular demand...
Easter Egg: FILE SEARCH EASTER EGG
Easter Egg: X-SETUP EASTER EGG - Part 3
Easter Egg: X-SETUP EASTER EGG - Part 2
Easter Egg: SKI FREE EASTER EGG
Easter Egg: MS IE 5/6 EASTER EGG
Easter Egg: EXCEL 2000 EASTER EGG - Part 2
Easter Egg: EXCEL 2000 EASTER EGG - Part 1
Easter Egg: WIN98 EASTER EGG - Part 4
Easter Egg: JAVASCRIPT BROWSER RESIZER EASTER EGG
Easter Egg: OSR2/NT/2000/ME/XP OPENGL EASTER EGG
Easter Egg: MSD EASTER EGGS
Easter Egg: WIN98 SE EASTER EGG
Easter Egg: X-SETUP 4.0/5.0 EASTER EGG - Part 1
Easter Egg: HOTDOG PROFESSIONAL 5.5 EASTER EGG
Easter Egg: WINDOWS/WFWG 3.1x CLIPBOARD EASTER EGG
Easter Egg: WORD 2000 EASTER EGG
Easter Egg: NETSCAPE NAVIGATOR/COMMUNICATOR EASTER EGGS - Part DEUX
Easter Egg: NETSCAPE/MOZILLA EASTER EGG - Part 1
Easter Egg: ANOTHER MS IE EASTER EGG
Easter Egg: OUTLOOK EXPRESS EASTER EGG
Easter Egg: WIN98 EASTER EGG - Part 3
Easter Egg: FRONTPAGE EASTER EGG
Easter Egg: MS OFFICE 95 EASTER EGG
Easter Egg: WIN98 EASTER EGG - Part DEUX
Easter Egg: PLUS! 98 EASTER EGG
Easter Egg: WORD 97 EASTER EGG
Easter Egg: WIN98 "MEMPHIS" EASTER EGG
Easter Egg: EXCEL 97 EASTER EGG
Easter Egg: WIN95 HOOPS GAME EASTER EGG
Easter Egg: WINDOWS/WFWG 3.1x EASTER EGG
Easter Egg: SOLITAIRE EASTER EGG
Easter Egg: MINESWEEPER EASTER EGGS + CHEATS
Easter Egg: HEARTS EASTER EGG
Easter Egg: POWERPOINT 95/97 EASTER EGG
Easter Egg: 3D TEXT EASTER EGGS
Easter Egg: FREECELL EASTER EGGS + CHEATS
Easter Egg: WORD VIEWER EASTER EGG
Easter Egg: IE 4.0X EASTER EGG
Easter Egg: WIN95 EASTER EGG FOLDER
Easter Egg: WIN95 EASTER EGG - Part DEUX
Easter Egg: WIN95 EASTER EGG - Part 1