File list (Check if you may need any files):
usbasp.2009-02-28
.................\bin
.................\...\firmware
.................\...\........\usbasp.atmega48.2009-02-28.hex
.................\...\........\usbasp.atmega8.2009-02-28.hex
.................\...\win-driver
.................\...\..........\libusb_0.1.10.1
.................\...\..........\...............\libusb0.dll
.................\...\..........\...............\libusb0.sys
.................\...\..........\...............\usbasp.inf
.................\...\..........\libusb_0.1.12.1
.................\...\..........\...............\libusb0.dll
.................\...\..........\...............\libusb0.sys
.................\...\..........\...............\libusb0_x64.dll
.................\...\..........\...............\libusb0_x64.sys
.................\...\..........\...............\testlibusb-win.exe
.................\...\..........\...............\testlibusb.exe
.................\...\..........\...............\usbasp.cat
.................\...\..........\...............\usbasp.inf
.................\...\..........\...............\usbasp_x64.cat
.................\...\..........\Readme.txt
.................\Changelog.txt
.................\circuit
.................\.......\USBasp.sch
.................\.......\USBasp_schematics.pdf
.................\firmware
.................\........\clock.c
.................\........\clock.h
.................\........\isp.c
.................\........\isp.h
.................\........\main.c
.................\........\Makefile
.................\........\usbasp.h
.................\........\usbconfig.h
.................\........\usbdrv
.................\........\......\asmcommon.inc
.................\........\......\Changelog.txt
.................\........\......\CommercialLicense.txt
.................\........\......\License.txt
.................\........\......\oddebug.c
.................\........\......\oddebug.h
.................\........\......\Readme.txt
.................\........\......\usbconfig-prototype.h
.................\........\......\usbdrv.c
.................\........\......\usbdrv.h
.................\........\......\usbdrvasm.asm
.................\........\......\usbdrvasm.S
.................\........\......\usbdrvasm12.inc
.................\........\......\usbdrvasm128.inc
.................\........\......\usbdrvasm15.inc
.................\........\......\usbdrvasm16.inc
.................\........\......\usbdrvasm165.inc
.................\........\......\usbdrvasm20.inc
.................\........\......\USBID-License.txt
.................\........\......\usbportability.h
.................\Readme.txt