I have a simple test setup using xampp at home, and I am getting really weird behavior when I attempt to set up 
multiple virtual hosts on this box. Here is my vhosts file:
 NameVirtualHost *:80
 <VirtualHost *:80>
  ServerAdmin 
[email protected]
  ServerName foo
  DocumentRoot "D:\wamp\xampp\htdocs\foo"
  ErrorLog logs/foo-error_log
  CustomLog logs/foo-access_log common
    <Directory "D:\wamp\xampp\htdocs\foo">
      Options Indexes FollowSymLinks Includes execCGI
      AllowOverride All
      Order Allow,Deny
      Allow From All
    </Directory>
 </VirtualHost>
 <VirtualHost *:80>
    ServerAdmin 
[email protected]
    ServerName bar
    DocumentRoot "D:\wamp\xampp\htdocs\bar"
    ErrorLog logs/bar-error_log
    CustomLog logs/bar-access_log common
    <Directory "D:\wamp\xampp\htdocs\bar">
      Options Indexes FollowSymLinks Includes execCGI
      AllowOverride All
      Order Allow,Deny
      Allow From All
    </Directory>
  </VirtualHost>
When I attempt to run visit the first site, it works as expected.
When I attempt to run the second site, I get a weird hybrid mishmash of both sites. It's the weirdest thing.