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# Windows Specific Information

LProf is an open source application that creates ICC profiles for cameras, scanners and monitors.

### USB Measurement Device Setup

#### LibUSB-Win32 and Friends

To use USB devices LibUSB-Win32 must be installed. Please go here for installation files. This site has two installation files that can be reached from the Downloads page. These include the LibUSB-Win32 Device Driver and the LibUSB-Win32 Filter Driver. At a minimum you will need the LibUSB-Win32 Device Driver installed on your machine. You can optionally use the LibUSB-Win32 Filter Driver instead of using the ArgyllCMS specific device drivers that are also included with LProf. But it has not been extensively tested and some devices may not work correctly when you use the LibUSB-Win32 Filter Driver.

#### Installing the ArgyllCMS Device Driver

For a new device this is fairly simple. First plug in the device and you will be greeted by the Windows "New Hardware Found" dialog. This dialog will ask you to install drivers for the device. Use this dialog to navigate to the location of the ArgyllCMS drivers. These will be located in <lprof install location>\share\lprof\drivers. Select the *.inf file that is correct for your device and finish running the dialog,
If you have already installed the vendors drivers then you may need to switch to the ArgyllCMS drivers if the the LibUSB-Win32 Filter Driver does not work for your device (see next section). To switch drivers use the Windows Device Manager "Update Drivers" dialog. This will allow you to select the ArgyllCMS drivers for your device. You can also use the "Update Drivers" "Display a List of Known Drivers" dialog to switch back and forth between the vendor's driver and the ArgyllCMS driver if you should need to do this.
There may be times when it is difficult to locate your device in the Windows Device Manager. To help you make sure you are installing the drivers for the correct device please refer to the Vendor and Product IDs table below.

#### The LibUSB-Win32 Filter Driver

It may be possible to use this driver along with the drivers supplied by the device vendor rather than the ArgyllCMS drivers for your device. Testing with a EyeOne Display LT did uncover some issues with this particular device and using the LibUSB-Win32 Filter Driver. These appeared to be timeout issues and it appears that some versions of the LibUSB-Win32 Filter Driver have this issue and other do not. If the LibUSB-Win32 Filter Driver works for your device then you can use your device with other software without having to switch drivers.

#### Huey HID or ArgyllCMS Drivers

The Huey is a HID device and may not need to have a driver installed when the device is first connected. But on some systems this is not the case and you will need to install the ArgyllCMS device drivers for the Huey. If that is the case on our system you will need to open up the Windows Device Manager and find the Huey device to change it's drivers. Look for it in the HID devices list. It will not be clearly labeled and will likely just show up as a nondescript HID device. To find it you will need to open the Properties dialog for each HID device and then go to the Details tab and select Hardware IDs. If the device is a Huey this will have something like:
USB\Vid_0971&Pid_2005&Rev_001
Vid 0971 is the GretagMacbeth vendor ID and Pid 2005 is the Huey product ID. The Rev number does not matter. Once the Huey entry in the list of HID devices is located install the ArgyllCMS driver for the Huey.

#### ColorVision Spyder 2

If you have a ColorVision Spyder 2 you will have additional steps that are needed to fully install it. Please see the Spyder 2 installation help page for information that applies to all platforms for this device.

### Vendor and Product IDs

#### Device | #### Vendor ID | #### Product ID
X-Rite Huey | 0971 | 2005
X-Rite EyeOne Pro | 0971 | 2000
X-Rite EyeOne Display series | 0971 | 2003
ColorVision Spyder 2 | 085C | 0200
X-Rite DTP-20 Pulse | 0765 | d020
X-Rite DTP-94 | 0765 | d094
X-Rite DTP-92 | 0765 | d092
X-Rite DTP-41B | 0765 | d041
MonacoOPTIX | 0670 | 0001
Colorimtre HCFR | 04DB | 005B

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