File list (Check if you may need any files):
PIC16F877A_PWM\funclist
..............\Includes.h
..............\Last Loaded sim.DBK
..............\Main.c
..............\Main.p1
..............\Main.pre
..............\PWM.as
..............\PWM.c
..............\PWM.cof
..............\PWM.h
..............\PWM.hex
..............\PWM.hxl
..............\PWM.lst
..............\PWM.map
..............\PWM.mcp
..............\PWM.mcs
..............\PWM.mcw
..............\PWM.obj
..............\PWM.p1
..............\PWM.pre
..............\PWM.rlf
..............\PWM.sdb
..............\PWM.sym
..............\sim.DSN
..............\sim.PWI
..............\startup.as
..............\startup.lst
..............\startup.obj
..............\startup.rlf
...........Sample_Calculator\Calculator.as
............................\Calculator.cof
............................\Calculator.hex
............................\Calculator.hxl
............................\Calculator.lst
............................\Calculator.map
............................\Calculator.mcp
............................\Calculator.mcs
............................\Calculator.mcw
............................\Calculator.obj
............................\Calculator.rlf
............................\Calculator.sdb
............................\Calculator.sym
............................\funclist
............................\Includes.h
............................\Keypad.c
............................\Keypad.h
............................\Keypad.p1
............................\Keypad.pre
............................\Last Loaded sim.DBK
............................\LCD.c
............................\LCD.h
............................\LCD.p1
............................\LCD.pre
............................\Main.c
............................\Main.p1
............................\Main.pre
............................\sim.DSN
............................\sim.PWI
............................\startup.as
............................\startup.lst
............................\startup.obj
............................\startup.rlf
............top_Watch\funclist
.....................\Includes.h
.....................\ISR.c
.....................\ISR.h
.....................\ISR.p1
.....................\ISR.pre
.....................\Last Loaded sim.DBK
.....................\LCD.c
.....................\LCD.h
.....................\LCD.p1
.....................\LCD.pre
.....................\Main.c
.....................\Main.p1
.....................\Main.pre
.....................\sim.DSN
.....................\sim.PWI
.....................\startup.as
.....................\startup.lst
.....................\startup.obj
.....................\startup.rlf
.....................\Stop Watch.as
.....................\Stop Watch.cof
.....................\Stop Watch.hex
.....................\Stop Watch.hxl
.....................\Stop Watch.lst
.....................\Stop Watch.map
.....................\Stop Watch.mcp
.....................\Stop Watch.mcs
.....................\Stop Watch.mcw
.....................\Stop Watch.obj
.....................\Stop Watch.rlf
.....................\Stop Watch.sdb
.....................\Stop Watch.sym
.....................\Timer.c
.....................\Timer.h
.....................\Timer.p1
.....................\Timer.pre
...........Timer0\funclist