Release 10.1A: OpenEdge Getting Started:
WebSpeed Essentials

Supported Web servers

For WebSpeed application development, you can use any Web server that supports one of the following interfaces:

CGI 1.1 — For example, Microsoft Internet Information Server (IIS), Apache, Netscape Enterprise, or Fast Track Server.
ISAPI — For example, Microsoft Internet Information Server (IIS).
NSAPI — For example, Netscape Enterprise or Fast Track Server.