By themselves, the include files will not compile.

There must be an INT_LIST and INT_CREATE in your program.
Code:
INCLUDE "DT_INTS-14.bas"
INCLUDE "ReEnterPBP-14.bas"

ASM
INT_LIST  macro    ; IntSource,        Label,  Type, ResetFlag?
        INT_Handler   TMR1_INT,  _ToggleLED1,   PBP,  yes
    endm
    INT_CREATE            ; Creates the interrupt processor
ENDASM

@   INT_ENABLE  TMR1_INT  ; Enable Timer 1 Interrupts
P.S: Do these interrupts work on 12F635?
Yes they do.
But I anticipate you will have more problems, because you already have more than 4-T? vars used.
So the program probably has a lot of math or logical conditions and there's going to be very little (if any) RAM left.

The 12F635 only has 64-bytes.
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