Update (2009/4/1): Starting from ZeeControls 2.1, there are 3 editions available.
Please review the installation guide on how to choose the right edition of ZeeControls, and install important MS hotfixes before you proceed to download and install ZeeControls.
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There are 2 versions of ZeeControls available at http://www.zettacube.com/Downloads.aspx.
If you want to use the AJAX functionalities, or your web application uses Microsoft ASP.NET AJAX, please download the ZeeControls 2.0 for ASP.NET AJAX version. Otherwise, download the ZeeControls 2.0 version.
The purchased license will allow you to use respective products in both versions.