wampserver配置有关问题

wampserver配置问题

  ServerAdmin www.mytest.com
  DocumentRoot "D:/wwwroot/mytest.com"
  ServerName mytest.com
  ErrorLog "logs/mytest-host.localhost-error.log"
  CustomLog "logs/mytest-host.localhost-access.log" common


这样配置后的网站只是把域名localhost改变成www.mytest.com而已，怎样才能把www.mytest.com变成自己想要的网址啊？？？
求各位高手帮帮忙！！
hosts也配置了！192.168.16.39 www.mytest.com
不知道哪里配置错了，求帮助！！

------解决方案--------------------
# Virtual hosts
Include conf/extra/httpd-vhosts.conf