Secrets For Minesweeper

To Reveal Mines
With your cursor inside the minesweeper window type "XYZZY" then press Shift-Enter and Enter. A white dot should appear in the upper-left corner of the screen. If it turns black, your cursor is resting on a mine.
Note : A white dot is so small. This trick works best if your Windows background is black.

To freeze timer
Start a new game and then hit the Windows key and the D key at the same time to minimize the game. (How quickly you press Windows+D will be your high score) Then, maximize the game again and the clock will be permanently frozen.