configure subdomain in apache code example

Example: configure a subdomain apache windows

NameVirtualHost 127.0.0.1:80
<VirtualHost *:80>
<Directory "C:\path\to\ecommerce">
    Options FollowSymLinks Indexes
    AllowOverride All
    Order deny,allow
    allow from All
</Directory>
ServerName ecomm.localhost
ServerAlias www.ecomm.localhost
DocumentRoot "C:\path\to\ecommerce"
</VirtualHost>