Auto subdomains in XAMPP possible?

Question

xampp

Actually in a subject a question. Tried with this setting:

<VirtualHost *:80>
  ServerName sites
  ServerAlias *.sites.loc
  VirtualDocumentRoot C:/xampp/htdocs/local/sites.loc/%1
</VirtualHost>

Assuming to create domains like *.sites.loc, but Apache does not start. the sites.loc domain is listed in hosts.