BotDetect ASP Classic CAPTCHA Generator

CAPTCHA Generator Features:


BotDetect ASP Captcha generator allows you to easily add Captcha protection to Classic ASP forms.

Steps are demonstrated bellow. We'll use default BotDetect settings.

To see how powerful and customizable BotDetect is, check the BotDetect features demo.

  • ASP Classic

1. Copy Captcha Library Files

Copy BotDetect.asp and the BotDetect folder to your application. These files (and a code example made by following these instructions, named "Basic CAPTCHA example") are included in the BotDetect installation.

2. Show a Captcha Challenge on the Form

On the ASP Classic form you want to protect against bots, add:
  <!-- #include file ="BotDetect.asp" -->


<% ' Adding BotDetect Captcha to the page 
  Dim ExampleCaptcha : Set ExampleCaptcha = (New Captcha)("ExampleCaptcha")
  ExampleCaptcha.UserInputID = "CaptchaCode"
  Response.Write ExampleCaptcha.Html

<input name="CaptchaCode" id="CaptchaCode" type="text" />

3. Check User Input During Form Submission

When the form is submitted, the Captcha validation result must be checked:
<% If Request.ServerVariables("REQUEST_METHOD") = "POST" Then
  ' validate the Captcha to check we're not dealing with a bot
  Dim isHuman : isHuman = ExampleCaptcha.Validate()
  If Not isHuman Then 
    ' TODO: Captcha validation failed, show error message
    ' TODO: Captcha validation passed, proceed with protected action
  End If 
End If %>

BotDetect CAPTCHA Options

To find more about configuring BotDetect and integrating it in various usage scenarios, please check the getting started with BotDetect Captcha page.

BotDetect ASP CAPTCHA Free Version

You can download BotDetect ASP CAPTCHA Component for free and use it immediately! Your ASP forms can be protected from spam (and bots in general) in minutes.

We offer basic email support for free to all BotDetect users. So if you need any assistance integrating BotDetect or have any questions or feedback, our Support department is at your disposal.

Once the BotDetect Captcha generator component has been integrated into your ASP website and you're satisfied with how it works, it's easy to upgrade your license if you need the extra features offered by commercial BotDetect versions.

BotDetect ASP CAPTCHA Free Download

BotDetect ASP Classic CAPTCHA System Requirements


Supported Operating Systems (x86 & x64):

  • Windows 2016 Server
  • Windows 10
  • Windows 2012 Server
  • Windows 8
  • Windows 2008 Server R2
  • Windows 7
  • Windows 2008 Server
  • Windows Vista
  • Windows 2003 Server
  • Windows XP
  • Windows 2000 Server
  • Windows 2000 Professional

Supported Internet Information Services:

  • IIS 10
  • IIS 8.5
  • IIS 8.0
  • IIS 7.5
  • IIS 7.0
  • IIS 6.0
  • IIS 5.1
  • IIS 5.0