May 22
Download Source Code: CaptchaImageGenerator.zip - 19.65KB
CAPTCHA Online Demo
Similar to the open-source ASP.NET project you can download and install on your own server, here is a very similar online demo, which shows different CAPTCHA images randomly generated. This portion of code is usually embedded in a client FORM. When you provide the exact same code - this demo uses case insensitivity - you get a Valid message. In real life, the web server page will act differently if you provide the right code or not.
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