I do not have access to iPlanet, but did manage to get access to an old Netscape Server.  After some experimentation, I managed to get script mapping going on this server.  The way to do this is to use the Shell CGI feature of the server:

 

1. Define your FoxWeb Program Root as a Shell CGI directory.  This is done in the Programs\ShellCGIDirectory part of the admin application:

 

Prefix: FoxWeb

Shell CGI Directory: c:/Program Files/FoxWeb/Progs

 

2. Define the fwx extension as a magnus-internal/shellcgi content type in your Web server's MIME types:

 

Category: type

Content-Type: magnus-internal/shellcgi

File Suffix: fwx

 

3. Associate the fwx extension with foxweb.exe in Windows.  The easiest way to do so is to double-click on an fwx file.  By default fwx files are not associated with any applications, so Windows will display the 'Open with...' dialog.  Select 'Other...' and point to foxweb.exe in your CGI directory.

 

To call fwx files, simply use a URL, such as http://servername/foxweb/show_cgi.fwx.  It's possible to configure your server, so that you can place fwx files in the root directory, but this may be dangerous if you are not careful.