It is driven codevision the win7 64-bit system, easy to use. Readme see detailed instructions

usbasp驱动(x64)\amd64\libusb0.dll
...............\.....\libusb0.sys
...............\ia64\libusb0.dll
...............\....\libusb0.sys
...............\install-filter.exe
...............\installer_x64.exe
...............\installer_x86.exe
...............\libusb-win32-bin-README.txt
...............\libusb0.dll
...............\libusb0.sys
...............\..cense\libusb-win32\installer_license.txt
...............\testlibusb-win.exe
...............\testlibusb.exe
...............\USBasp.cat
...............\USBasp.inf
...............\x86\libusb0.sys
...............\...\libusb0_x86.dll
...............\帮助文档.txt
...............\license\libusb-win32
...............\amd64
...............\ia64
...............\license
...............\x86
usbasp驱动(x64)

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