Web Wiz CAPTCHA is designed for the Windows hosting environment, and has been designed to work with a variety of different server settings and locales.
Please check with your web hosting company or server admin that your web hosting account meets those requirements listed below.
Server Requirements
Web Wiz CAPTCHA has extensively tested to run with any of the operating systems listed below using the Windows IIS web server with ASP enabled.
Windows 2008 R2 with IIS 7.5
Windows 2008 with IIS 7
Windows 2003 with IIS 6
Windows 2000 with IIS 5
Windows 7 with IIS 7.5
Windows Vista with IIS 7
Windows XP Pro with IIS 5.1
Client Side Requirements
Web Wiz CAPTCHA has been tested in the following browsers, however as the CAPTCHA image is a bitmap image it should work in all browsers that support images.