Retrieves the relative path to the CGI linking file.
The CGI linking file is the executable file for the Web server security filter, which is a different file for each operating system and Web server. For example, the file name is nph-idc_cgi.exe file for Solaris.
Returns the relative path as a string.
As information output on a page or to a log:
As part of an Idoc Script statement or evaluation:
<$if SCRIPT_NAME$> <!--statement-->