ASPajax Professional contains some advanced features we have developed over time which can offer:
Bandwidth compression. We have seen improvements of 90% reduction in bandwidth in some AJAX applications.
Increased speed for AJAX transactions.
A slicker, silent experience in Internet Explorer
LiveASP allowing all ASP server code to be called from client JavaScript.
This allows your ASPajax to feel FASTER, more professional, and may allow you to serve larger audiences using your existing hardware setup.