Special/Function

ALT	the Alt key on the keyboard
CTRL	the Ctrl (Control) key on the keyboard
F1 through F12	the F1 through F12 keys on the keyboard
SHIFT	the Shift key on the keyboard
SPACE	the Spacebar on the keyboard
TAB	the Tab key on the keyboard
ENTER	the Enter key on the keyboard
ESC	the Escape key on the keyboard

Alpha-numeric

AKEY through ZKEY	the corresponding letter on the keyboard
0KEY through 9KEY	the corresponding number on the keyboard (above the letters) on the keyboard—not on the numberpad

Numeric pad

NUM0 through NUM9	the corresponding number on the numberpad—not on the keyboard above the letters ('Num Lock' usually needs to be enabled)
NUM+ and NUM−	the corresponding key on the numberpad

Note for Windows 2000/XP users: do not press right Shift five times in a row as it turns on the Windows Sticky Keys. Doing so will mess up the ability for your keyboard to recognize commands. If the box for sticky keys appears, press cancel. If you don't need the accessibility features, you can disable sticky keys: go to Start → Settings → Control Panel; select Accessibility Options, and for each of the options, StickyKeys, FilterKeys, and ToggleKeys, (1) clear the "Use …" checkbox, and (2) press the "Settings…" button and clear the "Use Shortcut" checkbox.