You must be on ILLiad Web DLL/Lending Web DLL v9.2.3 (ILLiad 9.2) or ILLiad Web DLL/Lending Web DLL v9.1.7 (ILLiad 9.1) at minimum to configure these features. For more information on updating your ILLiad server to install the required version of these components, see the ILLiad 9.1 and ILLiad 9.2 release notes.
The CAPTCHA tag is used to display the captcha challenge requirement on the New User Registration form (NewUserRegistration.html) and Lending New User Registration form (LendingNewUserRegistration.html) when a captcha integration has been configured in the ILLiad Customization Manager. If no captcha integration has been configured in the Customization Manager, then the CAPTCHA tag will only be used to add the Submit button to the forms. The tag has no additional specifications.
The CAPTCHA tag can only be used on the New User Registration form (NewUserRegistration.html) and Lending New User Registration form (LendingNewUserRegistration.html). It is not supported for use on any other ILLiad web pages/forms.
For more information on configuring a captcha integration for ILLiad, see Preventing Account Creation Spam in ILLiad.