Assembly Language Problem

include 'win32ax.inc'                                                                                                  ;The windows **** that i need.data        InputHandle DD ?                                                                                               ;This will store the input handle from windows        OutputHandle DD ?                                                                                              ;This will store the output handle from windows        NumberOfCharactersRead DD ?                                                                                    ;How many characters were read from the console        NumberOfCharactersWritten DD ?                                                                                 ;How many characters were written to the console        UserInput DB ?                                                                                                 ;What the user actully typed in        WrongNumberOfCharactersString DB 'You must only enter 1 character!'                                            ;The string that will be displayed when the user doesnt enter the right number of characters        EndlineCharacter DB 13                                                                                         ;This is the ASCII code for a new line.code        Main:                invoke AllocConsole                                                                                    ;Init the console                invoke GetStdHandle,STD_INPUT_HANDLE                                                                   ;Put the input handle into eax                mov [InputHandle],eax                                                                                  ;Store the input handle in a varible                invoke GetStdHandle,STD_OUTPUT_HANDLE                                                                  ;Put the output handle into eax                mov [OutputHandle],eax                                                                                 ;Store the output handle in a varible                jmp GetUserInput                                                                                       ;Go and get the user input        GetUserInput:                invoke ReadConsole,[InputHandle],UserInput,1,NumberOfCharactersRead,0                                  ;Get the input                mov eax,[NumberOfCharactersRead]                                                                       ;Move how many characters the user enterd into eax in preperation for the if statement                mov ebx,1                                                                                              ;Move how many characters the user was supposed to enter into edx for the if statement                cmp eax,ebx                                                                                            ;later                jg TooManyCharacters                                                                                   ;If the user enterd too many characters jump to a label                jmp ExitProgram                                                                                        ;If the user did everything right, exit the program        TooManyCharacters:                invoke WriteConsole,[OutputHandle],EndlineCharacter,1,NumberOfCharactersWritten,0                      ;Go to a new line                invoke WriteConsole,[OutputHandle],WrongNumberOfCharactersString,31,NumberOfCharactersWritten,0        ;Write the error message                invoke WriteConsole,[OutputHandle],EndlineCharacter,1,NumberOfCharactersWritten,0                      ;Go to a new line                jmp GetUserInput                                                                                       ;Try and get the user input again        ExitProgram:                invoke  ExitProcess,0                                                                                  ;Exit the program.end Main