File list (Check if you may need any files):
usb2serial
..........\CHAP_9.c
..........\CHAP_9.h
..........\CHAP_9.LST
..........\CHAP_9.OBJ
..........\D12CI.c
..........\D12CI.h
..........\D12CI.LST
..........\D12CI.OBJ
..........\HAL.c
..........\HAL.h
..........\HAL.LST
..........\HAL.OBJ
..........\ISR.c
..........\ISR.h
..........\ISR.LST
..........\ISR.OBJ
..........\MAIN.c
..........\MAIN.h
..........\MAIN.LST
..........\MAIN.OBJ
..........\readme.txt
..........\REG52.H
..........\STARTUP.A51
..........\STARTUP.A51.bak
..........\u2s.ddk
..........\u2s.edk
..........\u2s.hex
..........\U2S.M51
..........\u2s.mpf
..........\U2S.OMF
..........\USB100.H
..........\usb2serial.edk
..........\VENDOR.c
..........\VENDOR.h
..........\VENDOR.LST
..........\VENDOR.OBJ