Hi friends, I am new for finger print device Let u know one think that i am using visual studio 2008 and i have a database in as dbf files. I have one fingerprint device LAN based and also USB based I have one web application , i want to use a fingerprint device as requirement Now my question is: I just write a code on page load as below int count = 0; zkemkeeper.CZKEMClass axczkem1 = new zkemkeeper.CZKEMClass(); bool bIsConnected = false; string ip = "192.168.140.254";//write here IP Address of your biomatric m/c int port = 4370; bIsConnected = axczkem1.Connect_Net(ip, port); if (bIsConnected == true) { MessageBox.Show("Connection established!!!" ); bool ret = axczkem1.ReadAllGLogData(1); if (ret) { int a = 0; int b = 0; int c = 0; int d = 0; int ee = 0; int f = 0; int g = 0; int h = 0; int i = 0; int j = 0; int k = 0; int l = 0; int m = 0; int n = 0; int o = 0; while (axczkem1.GetAllGLogData (1, ref a, ref b, ref c, ref k, ref l, ref d, ref m, ref ee, ref f, ref g)) { if (ee == 7 && m == 4 && d == 2011) { count++; if (b == //any Employee No) { MessageBox.Show(b.ToString() + " hour: " + f + " Min: " + g); MessageBox.Show(k.ToString() + " " + l.ToString()); } } } //MessageBox.Show(count.ToString ()); } } else MessageBox.Show("cannot Connection!!!"); axczkem1.Disconnect(); this code is of window application but i just replace it with web, i get here that connection status. I want to know that how to catch the event that a finger is put on device that send device. i have to refresh the page every time when a any finger is put on device I hope any one understan what i want to say, please an