File list (Check if you may need any files):
PIC18F4550_PWM_Proteus+Mplab\4550_PWM.DSN
............................\4550_PWM.PWI
............................\Last Loaded 4550_PWM.DBK
............................\PWM.c
............................\PWM.cof
............................\PWM.hex
............................\PWM.map
............................\PWM.mcp
............................\PWM.mcs
............................\PWM.mcw
............................\PWM.o
............................\The_Lenth_Of_pulse.DSN
............................\The_Lenth_Of_pulse.PWI