File list (Check if you may need any files):
usbasp-windriver.2011-05-28
...........................\libusb_0.1.12.1
...........................\libusb_1.2.4.0
...........................\..............\amd64
...........................\..............\x86
...........................\..............\ia64
...........................\..............\license
...........................\..............\.......\libusb-win32
...........................\Readme.txt
...........................\libusb_0.1.12.1\libusb0_x64.sys
...........................\...............\libusb0.sys
...........................\...............\libusb0_x64.dll
...........................\...............\testlibusb-win.exe
...........................\...............\libusb0.dll
...........................\...............\usbasp.inf
...........................\...............\usbasp_x64.cat
...........................\...............\usbasp.cat
...........................\...............\testlibusb.exe
...........................\.......1.2.4.0\installer_x64.exe
...........................\..............\usbasp.inf
...........................\..............\usbasp.cat
...........................\..............\installer_x86.exe
...........................\..............\libusb-win32-bin-README.txt
...........................\..............\amd64\libusb0.sys
...........................\..............\.....\libusb0.dll
...........................\..............\x86\libusb0.sys
...........................\..............\...\libusb0_x86.dll
...........................\..............\ia64\libusb0.sys
...........................\..............\....\libusb0.dll
...........................\..............\license\libusb-win32\installer_license.txt