Prompts you to name the Web Client site.
Site name - enter the site name, which will become part of the URL for accessing the site.
Virtual directory - Enter the name of the virtual directory in IIS.
Use HTTPS - Indicates whether or not HTTPS will be enabled for this site. By default, HTTP is not enabled.
Port - Sets the TCP port to be used by the software. By default, it's set to 80 for HTTP or 443 for HTTPS.
Use External Host Name – Allows you to set a fully-qualified external domain as the host for your site. If not specified, the local host name is used.
I want the wizard to create local operating system users for site application pools automatically - Choose this option to allow the wizard to run scripts that will create the local operating system users and group assignments for the IIS application pools that support the site.
I will create local operating system users for site application pools myself - Choose this option not to run the scripts to create the local operating system users and group assignments for the IIS application pools that support the site, thereby requiring you to perform these tasks manually.