how do i use serial key for my application

Question

I need to make a serial key software for my application. How do i do that?

Manjiri Shevde · Answer

hi Kirtan can u pls tell me what is this SerialDialog? is it the class that u generated coz when i tried your code i get an error that SerialDialog not found. pls help me. my email id is manjirishevde@gmail.com .

Kirtan Patel · Answer

Friend Give You Simple Idea Create registry Key When you Install Software write Serial In Registry and Compare it Every time when Software is Loaded if its True Software Will run else Will ask you For Serial .. First of All make your Setup Project Capable to Create Entry in HKEY_CURRENTUSER like Below Its not Complete Code But Just Code that i have Writen to Show you Example How to Code for Registry using Microsoft.Win32; private void Form1_Load( object sender EventArgs e) { RegistryKey regkey = Registry.CurrentUser.OpenSubKey( @Softwares\CompanyName\ true); string Serial = regkey.GetValue( AppSerial  ).ToString(); regkey.Close(); if (Serial !=  YourCustome generated Serial) { // Show Serial Validation Dialog SerialDialog sd = new SerialDialog(); SerialDialog.ShowDialog(); //Now Write Code For Form Closing if User Gives Wrong Serial number !! } }