The HTTP Client feature is supported in all OpenEdge runtime environments (GUI, TTY, batch, and AppServer). In order to use it, you must include the OpenEdge.Net.pl procedure library in your PROPATH.
The following table lists the PROPATH settings for UNIX and Windows systems:
UNIX TTY
$DLC/tty/netlib/OpenEdge.Net.pl
Windows GUI
%DLC%\gui\netlib\OpenEdge.Net.pl
Windows TTY
%DLC%\tty\netlib\OpenEdge.Net.pl
See OpenEdge Getting Started: Installation and Configuration for information on how to set PROPATH on UNIX and Windows platforms. See Progress Developer Studio for OpenEdge Online Help for information on setting PROPATH in Progress Developer Studio projects.