Redirect Boss...  

If you have multiple domain names and you want to operate each as it's own web site, then RedirectBoss can create the scripts you need. All you need to do is create a sub-directory for each domain name under your main directory, on your web server account. RedirectBoss will quickly create the script neccessary to direct your visitors toward the content for the domain name they entered. With no programming involved. RedirectBoss allows you to create domain name based redirection scripts in the following languages.  PHP, Perl, ASP, ASP.net, ColdFusion, & JavaScript!