The Web server is responsible for the communication between Java applications and the TREX servers. The application sends requests to the Web server in XML format using HTTP/HTTPS. The Web server converts the requests to a TREX-internal format and then forwards them to the responsible TREX servers.
A TREX component that enhances the Web server with TREX-specific functions is installed on the Web server. Technically, this component is implemented as follows:
On Windows, as an ISAPI server extension for the Microsoft Internet Information Server
On UNIX, as a shared library for the Apache Web server