By themselves, the include files will not compile.

There must be an INT_LIST and INT_CREATE in your program.
Code:
INCLUDE "DT_INTS-18.bas"
INCLUDE "ReEnterPBP-18.bas"
INCLUDE "Elapsed_INT-18.bas"  ; Elapsed Timer Routines

ASM
INT_LIST  macro    ; IntSource,        Label,  Type, ResetFlag?
        INT_Handler   TMR1_INT,  _ClockCount,   PBP,  yes
    endm
    INT_CREATE            ; Creates the interrupt processor
ENDASM

@   INT_ENABLE  TMR1_INT  ; Enable Timer 1 Interrupts
You'll need the -18 version of the Elapsed Timer too.
http://darreltaylor.com/DT_INTS-18/downloads.html