This topics contains the example program of Captcha text in VB.NET. The CAPTHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart. This will reduce the hackers, spam attackers, and fake visitors or entries from website.
Example Screenshot: In the following example we create one label to display random generated captcha text, Refresh button to change captcha text, Text box to enter captcha text for trusted users and Register button to verify the entered text valid or not.
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