Fire up your Apache web server. Since the Apache web server comes as a bundle of other third-party server software in most cases, all you will need to do is fire up the bundled application to activate the Apache server inside.
Locate the server icon on the taskbar if you are using a local-based server. This icon will show all the services running. Click once to bring the menu and locate the Apache folder.
Locate the server configuration folder if you are using a remote server. Locate the PHP folder which will contain the "httpd.conf" file.
Search for the string "AddHandler" and re-write it to read this way:AddHandler server-parsed .shtml
Save all the changes and refresh the page to test.