Remote Desktop manager in HTML 5

See more:

C#

Javascript

Hi!
I have a problem. I want to send from a html to a c# program the keyboard events.
When i press the SHIFT it works, but if i doesn't press SHIFT, it is dummy :(
Can somebody help me to write a right code for it?
I use json in my script, what sends to to my program the right ACSII codes, my program receives it, but it is not correct :S

$("body").bind("keypress", function (event) {
        chCode = ('charCode' in event) ? event.charCode : event.keyCode;
        char = String.fromCharCode(event.which);
        console.log("char:" + char + " which:" + event.which + " keyCode:" + event.keyCode + " charCode:" + event.charCode);
        json = '{"eventID":"keypress","charCode":"' + event.which + '"}';
        ws.send(json);
    });

case "keypress":
                    charCode = (string)(jsonObj["charCode"]);
                    byte keyCode = (byte)Convert.ToInt32(charCode);
                    str = Convert.ToString(Convert.ToChar(Convert.ToInt32(charCode)));
                    Console.WriteLine(str);
                    Console.WriteLine(keyCode);

                    const int KEYEVENTF_EXTENDEDKEY = 0x1;
                    const int KEYEVENTF_KEYUP = 0x2;
                    keybd_event(keyCode, 0x45, KEYEVENTF_EXTENDEDKEY, 0);
                    keybd_event(keyCode, 0x45, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
                    break;

Thank you for helping me, and sorry my bad english!