NOTE
that you generally can't
install USB drivers on
Vista
64/Windows 7 64 bit
due to Microsoft's driver code signing
requirements.
You
can install the
USB drivers on Vista 64 if you use some sort of
driver code signing workaround, such as pressing
F8 when the system boots, and
selecting the boot option to "Disable Driver Signature Enforcement".
Note that you
have to do this
every time you boot
and want to use the USB instruments. [You may still get a warning about
an unsigned driver not being loaded after plugging the instrument in,
booting or installing the
driver, but take these messages with a grain of salt, and check in
device manager and also whether the instruments are
actually accessible using Argyll's tools.]
A safer and more convenient workaround is to self sign the drivers and
put your system in test mode. The procedure for doing this is a little
complicated though, and beyond the scope of this documentation. You
might want to refer to
this.
If you take this path then
make sure
you sign the libusb0.sys and libusb0_x86.sys files in the
argyll/libusbw directory BEFORE
you install the device,
otherwise you will have to remove & delete the driver, and also
manually delete the libusb0 and libusb0_x86 .sys and .dll files
from Windows\system32, Windows\System32\drivers and Windows\SysWOW64
and start again.
(Another possibility might be to use this
<http://www.ngohq.com/home.php?page=dseo>,
but use at your own risk, I haven't tried it myself.)
[In the long run it may be possible to switch Argyll to using the
winusb drivers, which should avoid the signing issue.]