thats fun! its not really calculator doing it tho, its windows help - the help file is a .CHM and is coded in HTML, which means the help file viewer (what you are looking at the help file with is actually internet explorer....) but still fun (and probly useless...)
Push Alt+Shift+2 in Solitaire and you win. You can also put any card on top of any other card using the following method (stolen from Gamefaqs): Use the left mouse button and drag a card onto any legal position, just as you normally would, but do not let go of the left mouse button. While holding the card over the position, hit the Escape key once, then release the left mouse button. Now left click once on any face-up card at all and it will teleport to that position. You may also use the space bar and directional arrows to do this, however the final click to teleport the card must still be done with the left mouse button. You can also cheat in minesweeper: To show all mines do the following: -Move your cursor to the Window with Minesweeper -Type in XYZZY then press SHIFT-ENTER then ENTER A little white dot will come up to the upper-left hand corner of the screen. Watch it. If you move your cursor over a mine, the dot will turn black. So now you you know where the mines are. If it is white, it is a safe square. NOTE: The code does not work on Windows 95 and Windows NT.