USB_C51 can not see, there are C source code and the code in two ways VC6.0

USB
...\C51Code
...\.......\usb c51
...\.......\.......\D12.C
...\.......\.......\DECLARE.H
...\.......\.......\DESCRIPT.H
...\.......\.......\ISR.C
...\.......\.......\KEYBOARD.C
...\.......\.......\MAIN.C
...\.......\.......\MOUSE.C
...\.......\.......\PS2.C
...\.......\.......\USB.C
...\SCH&PCB
...\.......\USBExp.DDB
...\.......\USBExp.PCB
...\.......\USBExp.Sch
...\usb.rar
...\VC6.0Code
...\.........\Debug
...\.........\ReadMe.txt
...\.........\res
...\.........\...\usb.ico
...\.........\...\usb.rc2
...\.........\resource.h
...\.........\StdAfx.cpp
...\.........\StdAfx.h
...\.........\usb.aps
...\.........\usb.clw
...\.........\usb.cpp
...\.........\usb.dsp
...\.........\usb.dsw
...\.........\usb.h
...\.........\usb.ncb
...\.........\usb.opt
...\.........\usb.plg
...\.........\usb.rc
...\.........\usbDlg.cpp
...\.........\usbDlg.h
...\.........\usb_diag_lib.cpp
...\.........\usb_diag_lib.h
...\.........\usb_lib.cpp
...\.........\usb_lib.h

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