Use the Edit ISAPI and CGI Restrictions Settings dialog box to enable unspecified CGI or ISAPI modules to run. If you leave these settings unchanged, only the CGI or ISAPI modules specifically listed can run on this server.
Enabling either Allow unspecified CGI modules or Allow unspecified ISAPI modules is a security risk. Your server could become susceptible to computer viruses or worms that exploit CGI or ISAPI technologies. To reduce this risk, you should create specific restrictions for all ISAPI extensions or CGI files that must run on your server.
UI Element List
Allow unspecified CGI modules
Enables unspecified CGI modules to run on this server.
Allow unspecified ISAPI modules
Enables unspecified ISAPI modules to run on this server.