VirtualHostX changes three files on your system.
First, when you run the Setup Wizard, VirtualHostX adds this line
to your apache httpd.conf file. The location of that file depends on which server you have selected in VirtualHostX's Preferences. For Apple's built-in Apache, that file is
For MAMP that file is
After that, whenever you click "Apply Changes", VirtualHostX modifies the following two files