UPDATE 4/11/2012: I put in a patch to fix an issue with the usb drivers that prevented multiple cameras from working on Windows. Please download the latest version from my Google Code page:
This is built using libusb-win32 so you'll need to install a special driver for each USB camera you want to use with it (and remove the driver if you want to use it with other software). Download the latest binary version of libusb-win32 from here http://sourceforge.net/projects/libusb-win32/, unzip it somewhere, and run ./bin/inf-wizard.exe, select your camera and when you're finished click the "Install" button. You can roll back the drivers for you camera if you no longer want to use it with gphoto2 by using the Device Manager on Windows (see Control Panel -> System).
You also need to tell gphoto2 where its camera and port libraries are. From a Windows command prompt in the directory that contains gphoto2.exe do:
Code: Select all
set CAMLIBS=./camlibs set IOLIBS=./iolibs gphoto2.exe