File list (Check if you may need any files):
WIN31DDK
........\286
........\...\BIN
........\...\...\CGA.DRV
........\...\...\CGAFIX.FON
........\...\...\CGAOEM.FON
........\...\...\CGASYS.FON
........\...\...\SOUND.DRV
........\...\COMM
........\...\....\BIMODINT.INC
........\...\....\CCOM.ASM
........\...\....\COMDEV.H
........\...\....\COMDEV.INC
........\...\....\COMDEVI.H
........\...\....\COMM.DEF
........\...\....\COMM.RC
........\...\....\COMM.RCV
........\...\....\IBMCOM.ASM
........\...\....\IBMCOM.INC
........\...\....\IBMINT.ASM
........\...\....\IBMLPT.ASM
........\...\....\IBMSETUP.ASM
........\...\....\INS8250.INC
........\...\....\MAKEFILE
........\...\....\MESSAGES
........\...\....\........\USA
........\...\....\........\...\COMMMSG.ASM
........\...\DISPLAY
........\...\.......\1PLANE
........\...\.......\......\BITBLT
........\...\.......\......\......\BITBLT.ASM
........\...\.......\......\......\BITBLT.PUB
........\...\.......\......\......\BMC_ETI.ASM
........\...\.......\......\......\BMC_ITE.ASM
........\...\.......\......\......\BMC_MAIN.ASM
........\...\.......\......\......\COMMENT.BLT
........\...\.......\......\......\DISCREEN.ASM
........\...\.......\......\......\GENCONST.BLT
........\...\.......\......\......\GENDATA.BLT
........\...\.......\......\......\GENLOCAL.BLT
........\...\.......\......\......\RLEBM.ASM
........\...\.......\......\......\ROPDEFS.BLT
........\...\.......\......\......\ROPTABLE.BLT
........\...\.......\......\BLKWHITE.ASM
........\...\.......\......\BLTINCS
........\...\.......\......\.......\BITBLTEQ.BLT
........\...\.......\......\.......\BITBLTEQ.PUB
........\...\.......\......\.......\BITBLTQE.BLT
........\...\.......\......\.......\CLIP.BLT
........\...\.......\......\.......\CLIP.PUB
........\...\.......\......\.......\COMMENT.BLT
........\...\.......\......\.......\COMMENT.PUB
........\...\.......\......\.......\EXCLUDE.BLT
........\...\.......\......\.......\EXCLUDE.PUB
........\...\.......\......\.......\LOOPEXEC.BLT
........\...\.......\......\.......\LOOPEXEC.PUB
........\...\.......\......\.......\LOOPLAST.BLT
........\...\.......\......\.......\LOOPLAST.PUB
........\...\.......\......\.......\PARSEROP.BLT
........\...\.......\......\.......\PARSEROP.PUB
........\...\.......\......\.......\PHASE.BLT
........\...\.......\......\.......\PHASE.PUB
........\...\.......\......\.......\PRMS.BLT
........\...\.......\......\.......\PRMS.PUB
........\...\.......\......\.......\ROPDEFS.BLT
........\...\.......\......\.......\ROPDEFS.PUB
........\...\.......\......\BW
........\...\.......\......\..\CGAHERC
........\...\.......\......\..\.......\BUILDSTR.ASM
........\...\.......\......\..\.......\BUILDSTR.PUB
........\...\.......\......\..\.......\CBLT.ASM
........\...\.......\......\..\.......\CBLT.PUB
........\...\.......\......\..\.......\CGA
........\...\.......\......\..\.......\...\3XSWITCH.ASM
........\...\.......\......\..\.......\...\CGA.ASM
........\...\.......\......\..\.......\...\CGA.DEF
........\...\.......\......\..\.......\...\CGA.RCV
........\...\.......\......\..\.......\...\CURSOR.INC
........\...\.......\......\..\.......\...\MAKEFILE
........\...\.......\......\..\.......\COMPUTEY.BLT
........\...\.......\......\..\.......\CURSOR.ASM
........\...\.......\......\..\.......\CURSOR.PUB
........\...\.......\......\..\.......\DEVCONST.BLT
........\...\.......\......\..\.......\DEVDATA.BLT
........\...\.......\......\..\.......\DEVLOCAL.BLT
........\...\.......\......\..\.......\EXIT.BLT
........\...\.......\......\..\.......\HERCULES
........\...\.......\......\..\.......\........\3XSWITCH.ASM
........\...\.......\......\..\.......\........\CURSOR.INC
........\...\.......\......\..\.......\........\HERCULES.ASM
........\...\.......\......\..\.......\........\HERCULES.DEF
........\...\.......\......\..\.......\........\HERCULES.RCV
........\...\.......\......\..\.......\........\MAKEFILE
........\...\.......\......\..\.......\INIT.ASM
........\...\.......\......\..\.......\LINES.INC
........\...\.......\......\..\.......\MAKEFILE
........\...\.......\......\..\.......\NJMP.MAC
........\...\.....