URL path question

I would like to be able to do the following: www.sample.com/path/file.php/additional/path/ Unfortunately on IIS, this gives an error. Interestingly, the following does not: www.sample.com/path/file.php/ I need to have a single PHP script be responsible for a series of resources, but I do not want to use a query string (for various reasons) to identify those resources. So, how can I do this? Is this an IIS-specific problem or does PHP just not allow this? TIA. --- Seairth Jacobs seairth@seairth.com p.s. Sorry if you see a cross-post on php.version4. I got a warning that said it was a read-only list, so I am reposting to this list as well (which is probably the correct list to post to in the first place. <g>