Unfortunately bfgminer does not work, as in it does not detect any devices, while cgminer has been working for a long time.
bfgminer.exe -d? results in 0 devices found.
cgminer finds and uses them all.
[2014-04-15 22:32:49] setrlimit: Not supported by platform
[2014-04-15 22:32:49] Started bfgminer 3.99.0
[2014-04-15 22:32:49] usb_devinfo_scan: Error opening device usb:001:001: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:49] usb_devinfo_scan: Error opening device usb:002:002: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:49] usb_devinfo_scan: Error opening device usb:001:007: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:49] usb_devinfo_scan: Error opening device usb:001:006: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:49] usb_devinfo_scan: Error opening device usb:002:012: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:49] usb_devinfo_scan: Error opening device usb:002:007: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:49] usb_devinfo_scan: Error opening device usb:001:002: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:49] usb_devinfo_scan: Error opening device usb:002:001: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:49] usb_devinfo_scan: Error opening device usb:001:003: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:49] usb_devinfo_scan: Error opening device usb:002:003: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:49] hidapi_try_lib: Couldn't load libhidapi.dll: unknown
[2014-04-15 22:32:49] hidapi_try_lib: Loaded libhidapi-0.dll, but no devices enumerated; trying other libraries
[2014-04-15 22:32:49] hidapi_try_lib: Couldn't load libhidapi-hidraw.dll: unknown
[2014-04-15 22:32:49] hidapi_try_lib: Couldn't load libhidapi-libusb.dll: unknown
[2014-04-15 22:32:49] hid_devinfo_scan: Failed to load any hidapi library
[2014-04-15 22:32:49] Failed to get PortName registry key value in lowl-vcom.c _vcom_devinfo_scan_windows__hubport():447: The system cannot find the file specified.
[2014-04-15 22:32:49] Failed to get PortName registry key value in lowl-vcom.c _vcom_devinfo_scan_windows__hubport():447: The system cannot find the file specified.
[2014-04-15 22:32:49] Failed to get PortName registry key value in lowl-vcom.c _vcom_devinfo_scan_windows__hubport():447: The system cannot find the file specified.
[2014-04-15 22:32:49] Failed to get PortName registry key value in lowl-vcom.c _vcom_devinfo_scan_windows__hubport():447: The system cannot find the file specified.
[2014-04-15 22:32:49] Failed to get PortName registry key value in lowl-vcom.c _vcom_devinfo_scan_windows__hubport():447: The system cannot find the file specified.
[2014-04-15 22:32:49] FTD2XX.DLL failed to load, not using FTDI autodetect
[2014-04-15 22:32:49] QueryDosDevice returned insufficent buffer error; enlarging to 200
[2014-04-15 22:32:49] QueryDosDevice returned insufficent buffer error; enlarging to 400
[2014-04-15 22:32:49] QueryDosDevice returned insufficent buffer error; enlarging to 800
[2014-04-15 22:32:49] QueryDosDevice returned insufficent buffer error; enlarging to 1000
[2014-04-15 22:32:49] QueryDosDevice returned insufficent buffer error; enlarging to 2000
[2014-04-15 22:32:49] QueryDosDevice returned insufficent buffer error; enlarging to 4000
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:001:010 (path=(null), vid=198c, pid=b1f1, manuf=c-scape, prod=bi?fury, serial=0606f02a02af266)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:003 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:001:003 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:011 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:010 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:009 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:008 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:001:008 (path=(null), vid=03eb, pid=204b, manuf=BPMC, prod=Bitfury BF1, serial=A49363533323517170B1)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:001 (path=(null), vid=8086, pid=1c26, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:001:002 (path=(null), vid=8087, pid=0024, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:001:009 (path=(null), vid=04d8, pid=00de, manuf=Microchip Technology Inc., prod=NanoFury NF2 v0.5 by MLM, serial=0000146469)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:014 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:013 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:006 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:007 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:012 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:001:006 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:001:007 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:002 (path=(null), vid=8087, pid=0024, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:001:004 (path=(null), vid=04d8, pid=00de, manuf=Microchip Technology Inc., prod=NanoFury NF2 v0.5 by MLM, serial=0000144002)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:001:001 (path=(null), vid=8086, pid=1c2d, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:001:005 (path=(null), vid=03eb, pid=204b, manuf=BPMC, prod=Bitfury BF1, serial=A49363533323516141F0)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:005 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:49] lowlevel_scan: Found usb device at usb:002:004 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:49] lowlevel_scan: Found vcom device at com:3 (path=\\.\COM3, vid=0000, pid=0000, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:49] lowlevel_scan: Found vcom device at com:1 (path=\\.\COM1, vid=0000, pid=0000, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:49] lowlevel_scan: Found vcom device at com:4 (path=\\.\COM4, vid=0000, pid=0000, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:49] Device rescan requested
[2014-04-15 22:32:50] usb_devinfo_scan: Error opening device usb:001:001: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:50] usb_devinfo_scan: Error opening device usb:002:002: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:50] usb_devinfo_scan: Error opening device usb:001:007: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:50] usb_devinfo_scan: Error opening device usb:001:006: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:50] usb_devinfo_scan: Error opening device usb:002:012: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:50] usb_devinfo_scan: Error opening device usb:002:007: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:50] usb_devinfo_scan: Error opening device usb:001:002: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:50] usb_devinfo_scan: Error opening device usb:002:001: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:50] usb_devinfo_scan: Error opening device usb:001:003: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:50] usb_devinfo_scan: Error opening device usb:002:003: LIBUSB_ERROR_NOT_SUPPORTED
[2014-04-15 22:32:50] hidapi_try_lib: Couldn't load libhidapi.dll: unknown
[2014-04-15 22:32:50] hidapi_try_lib: Loaded libhidapi-0.dll, but no devices enumerated; trying other libraries
[2014-04-15 22:32:50] hidapi_try_lib: Couldn't load libhidapi-hidraw.dll: unknown
[2014-04-15 22:32:50] hidapi_try_lib: Couldn't load libhidapi-libusb.dll: unknown
[2014-04-15 22:32:50] hid_devinfo_scan: Failed to load any hidapi library
[2014-04-15 22:32:50] Failed to get PortName registry key value in lowl-vcom.c _vcom_devinfo_scan_windows__hubport():447: The system cannot find the file specified.
[2014-04-15 22:32:50] Failed to get PortName registry key value in lowl-vcom.c _vcom_devinfo_scan_windows__hubport():447: The system cannot find the file specified.
[2014-04-15 22:32:50] Failed to get PortName registry key value in lowl-vcom.c _vcom_devinfo_scan_windows__hubport():447: The system cannot find the file specified.
[2014-04-15 22:32:50] Failed to get PortName registry key value in lowl-vcom.c _vcom_devinfo_scan_windows__hubport():447: The system cannot find the file specified.
[2014-04-15 22:32:50] Failed to get PortName registry key value in lowl-vcom.c _vcom_devinfo_scan_windows__hubport():447: The system cannot find the file specified.
[2014-04-15 22:32:50] FTD2XX.DLL failed to load, not using FTDI autodetect
[2014-04-15 22:32:50] QueryDosDevice returned insufficent buffer error; enlarging to 200
[2014-04-15 22:32:50] QueryDosDevice returned insufficent buffer error; enlarging to 400
[2014-04-15 22:32:50] QueryDosDevice returned insufficent buffer error; enlarging to 800
[2014-04-15 22:32:50] QueryDosDevice returned insufficent buffer error; enlarging to 1000
[2014-04-15 22:32:50] QueryDosDevice returned insufficent buffer error; enlarging to 2000
[2014-04-15 22:32:50] QueryDosDevice returned insufficent buffer error; enlarging to 4000
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:001:010 (path=(null), vid=198c, pid=b1f1, manuf=c-scape, prod=bi?fury, serial=0606f02a02af266)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:003 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:001:003 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:011 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:010 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:009 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:008 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:001:008 (path=(null), vid=03eb, pid=204b, manuf=BPMC, prod=Bitfury BF1, serial=A49363533323517170B1)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:001 (path=(null), vid=8086, pid=1c26, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:001:002 (path=(null), vid=8087, pid=0024, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:001:009 (path=(null), vid=04d8, pid=00de, manuf=Microchip Technology Inc., prod=NanoFury NF2 v0.5 by MLM, serial=0000146469)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:014 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:013 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:006 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:007 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:012 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:001:006 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:001:007 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:002 (path=(null), vid=8087, pid=0024, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:001:004 (path=(null), vid=04d8, pid=00de, manuf=Microchip Technology Inc., prod=NanoFury NF2 v0.5 by MLM, serial=0000144002)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:001:001 (path=(null), vid=8086, pid=1c2d, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:001:005 (path=(null), vid=03eb, pid=204b, manuf=BPMC, prod=Bitfury BF1, serial=A49363533323516141F0)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:005 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:50] lowlevel_scan: Found usb device at usb:002:004 (path=(null), vid=10c4, pid=ea60, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:50] lowlevel_scan: Found vcom device at com:3 (path=\\.\COM3, vid=0000, pid=0000, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:50] lowlevel_scan: Found vcom device at com:1 (path=\\.\COM1, vid=0000, pid=0000, manuf=(null), prod=(null), serial=(null))
[2014-04-15 22:32:50] lowlevel_scan: Found vcom device at com:4 (path=\\.\COM4, vid=0000, pid=0000, manuf=Silicon Labs, prod=CP2102 USB to UART Bridge Controller, serial=0001)
[2014-04-15 22:32:50] Device rescan requested a second time, delaying
[2014-04-15 22:32:50] Timers: Using QueryPerformanceCounter
[2014-04-15 22:32:50] Recalibrating timeofday offset (delta 1396381875.1084103s)
[2014-04-15 22:32:50] schedule_rescan: Scheduling rescan (no rescans currently pending)
[2014-04-15 22:32:50] Devices detected: