In order for the web server to correctly identify and parse ASP, ASP.net, ColdFusion and ColdFusion MX files, they should use the following extensions:
ASP files should use ".asp".
ASP.net files end with ".aspx"
ColdFusion and ColdFusion MX files must use ".cfm"
Please note: Because ColdFusion and ColdFusion MX files both use the ".cfm" extension, it is not possible to have both services enabled at the same time.