Platforms

Apache on VMS
MeepZor Consulting ports Apache to Open VMS/Alpha and Open VMS/VAX.
http://meepzor.com/apache-vms.html

Apache Server for OS/2
Information and utilities for running Apache Server on OS/2. Prebuilt modules for PHP3/4, and SSL.
http://silk.apana.org.au/apache/

Apache+SSL Win32 HOWTO
Setting up Apache with mod_ssl on Windows NT and 98 to provide secure HTTP services.
http://tud.at/programm/apache-ssl-win32-howto.php3

The Register: Compaq iPaq runs Apache
"Compaq's iPaq Pocket PC has just become what's possibly the world's smallest Apache-based Web server." <small>(January 19, 2001)</small>
http://www.theregister.co.uk/2001/01/19/compaq_ipaq_runs_apache/