File list (Check if you may need any files):
guardSD
.......\a2000.h
.......\a2000.inc
.......\bsrSD.h
.......\bsrSD.inc
.......\bsrv222SDL.lib
.......\Debug
.......\.....\10_48k.res
.......\.....\11_48k.res
.......\.....\12_48k.res
.......\.....\15_48k.res
.......\.....\16_48k.res
.......\.....\17_48k.res
.......\.....\18_48k.res
.......\.....\1_48k.res
.......\.....\2_48k.res
.......\.....\31_48k.res
.......\.....\3Com_48k.res
.......\.....\3_48k.res
.......\.....\40_48k.res
.......\.....\41_48k.res
.......\.....\4com_48k.res
.......\.....\4_48k.res
.......\.....\5_48k.res
.......\.....\6_48k.res
.......\.....\7_48k.res
.......\.....\copy_48k.res
.......\.....\fiq.lst
.......\.....\fiq.obj
.......\.....\fire_48k.res
.......\.....\FOUR_COM_48k.res
.......\.....\GRE_OFF_48k.res
.......\.....\GRE_ON_48k.res
.......\.....\guardSD.ary
.......\.....\guardSD.map
.......\.....\guardSD.S37
.......\.....\guardSD.sbm
.......\.....\guardSD.sym
.......\.....\hardware.lst
.......\.....\hardware.obj
.......\.....\initIO.lst
.......\.....\initIO.obj
.......\.....\main.asm
.......\.....\main.lst
.......\.....\main.obj
.......\.....\RED_OFF_48k.res
.......\.....\RED_ON_48k.res
.......\.....\Resource.lst
.......\.....\Resource.obj
.......\.....\THREE_COM_48k.res
.......\Device.env
.......\fiq.asm
.......\guardSD.env
.......\guardSD.h
.......\guardSD.lik
.......\guardSD.opt
.......\guardSD.rc
.......\guardSD.set
.......\guardSD.spj
.......\hardware.asm
.......\hardware.h
.......\hardware.inc
.......\initIO.asm
.......\main.c
.......\Makefile
.......\Resource.asm
.......\Resource.inc
.......\s480.h
.......\s480.inc
.......\sacmv26e.lib
.......\voice
.......\.....\1.48k
.......\.....\10.48k
.......\.....\11.48k
.......\.....\12.48k
.......\.....\13.48k
.......\.....\14.48k
.......\.....\15.48k
.......\.....\16.48k
.......\.....\17.48k
.......\.....\18.48k
.......\.....\2.48k
.......\.....\3.48k
.......\.....\30.48k
.......\.....\31.48k
.......\.....\3Com.48k
.......\.....\4.48k
.......\.....\40.48k
.......\.....\41.48k
.......\.....\4com.48k
.......\.....\5.48k
.......\.....\6.48k
.......\.....\7.48k
.......\.....\8.48k
.......\.....\9.48k
.......\.....\copy.48k
.......\.....\diffcmds.48k
.......\.....\different2.48k
.......\.....\fire.48k
.......\.....\GRE_OFF.48k