To use the control, enter a value, paste it from the Clipboard, or drag and drop it from the debugger into this edit control. Enter the value in hexadecimal or decimal form and then click Look Up. Hexadecimal values should be preceded by 0x; valid characters are 0-9, A-F, and a-f. Decimal values can be preceded by the minus sign (-); valid characters are 0-9.

ERRLOOK Reference