Virtualhost name for zend in wamp (2 replies)

To whom it may concern:
If I create virtual host name for my zend project under wamp, Do my joomla projects under wamp work without virtual host name or I got to create virtual host name for all joomla projects of mine too?( I am using zend and joomla under www folder of wamp server) In other words could some projects work with virtual host name while others work regularly without virtual host name?
Kian William