Thinking architecturally, from the lowest layer of the OSI model to the highest
5-6. Winsock
6-7. HTTP
7. TruClient
7. Citrix
7 RDP
7 GUI Virtual User
Ask yourself, architecturally, how do you know that you absolutely require Ajax TruClient? What is the compelling technical item which dries this on your site/server (independent of third party web site integration on your application mashup )? If none exists, then go elsewhere in terms of protocol