File list (Check if you may need any files):
Firmware\autofiles\usbcfg.h
........\.........\usbdsc.c
........\.........\usbdsc.h
........\io_cfg.h
........\main.c
........\pic18f4550usb.DSN
........\pic18f4550usb.PWI
........\system\interrupt\interrupt.c
........\......\.........\interrupt.h
........\......\typedefs.h
........\......\usb\class\generic\usbgen.c
........\......\...\.....\.......\usbgen.h
........\......\...\usb.h
........\......\...\...9\usb9.c
........\......\...\....\usb9.h
........\......\...\...ctrltrf\usbctrltrf.c
........\......\...\..........\usbctrltrf.h
........\......\...\...defs\usbdefs_ep0_buff.h
........\......\...\.......\usbdefs_std_dsc.h
........\......\...\....rv\usbdrv.c
........\......\...\......\usbdrv.h
........\......\...\usbmmap.c
........\......\...\usbmmap.h
........\......\...\usb_compile_time_validation.h
........\USBFW1ms.hex
........\USBFW1ms.mcp
........\USBFW1ms.mcs
........\USBFW1ms.mcw
SIMULINK model\mpusbapi.dll
..............\mpusbapi.h
..............\Read Me.txt
..............\SEND_DATA.mdl
..............\sfuntmpl_basic.c
..............\sfuntmpl_basic.mexw32
Firmware\system\usb\class\generic
........\......\...\class
........\......\...\usb9
........\......\...\usbctrltrf
........\......\...\usbdefs
........\......\...\usbdrv
........\......\interrupt
........\......\usb
........\autofiles
........\system
Firmware
SIMULINK model