When a user type http://servername/script.html/ab/bc
I want it to show script.html instead of 404 error message.

I need the "ab/bc" as an input to the script and I don't want to use
?param1=ab&param2=bc
I can access "ab/bc" using $REQUEST_URI

Could someone please tell me how to do this?
BTW, the hosting server that I use can do this,
but I can't do this in my own computer (both using apache)

Please .

Thank you.
Andi