JP Hellemons Building E-commerce web applications

How to add a Captcha to your Login form Asp.Net in 10 foolproof steps

15. December 2010 17:35by JP Hellemons in C#

A quick and good solution to add Captcha’s to your solution is to use Google’s. There are various solutions available online to make your own captcha, but I prefer using Google’s Recaptcha which can be found on: http://www.google.com/recaptcha

There is this free usercontrol available online.

Here are the 10 easy steps to follow:

1) sign up at https://www.google.com/recaptcha/admin/create

2) add a site

3) copy & paste your public and private key in notepad as reminder

4) download and extract the latest version of the .net control which can be found at http://code.google.com/p/recaptcha/downloads/list?q=label:aspnetlib-Latest

5) put the extracted files in the Bin folder of your solution

6) The next thing is to add a reference in your project to the DLL in your Bin folder. More...