ParamStr function

  DECLARATION:  ParamStr(Index);

      PURPOSE:  Returns a specified command line parameter

         UNIT:  System

      REMARKS:  Index must be a word-type expression.  ParamStr returns
                the Indexth parameter that was entered at the command line.
                Passing a value greater than the actual number of parameters
                will yield an empty string.  With DOS versions 3.0 and later,
                ParamStr(0) refers to the path and filename of the program
                executing; earlier versions would return an empty string.