Finding dll on floppy disk

[Phil <rhodes@xxxxxxxxxxxxxx>]

       I just got a floppy disk with some ELA codes on it.  I am suppose to
copy the dll into the prog directory.  How do I find and know it is the
dll????  I can see the functions, Indicators, Systems, paint bars, showmes,
but, I don't see the dll.  
  Any information would be very helpful.

                              Thank You,
                              Phil
                              rhodes@xxxxxxxxxxxxxx