14Installing/Uninstalling the USB TWAIN Driver/USB WIA DriverThe installation procedures vary depending on the computer. Check your OSand proceed to the referred pages.Windows 98 ( 15), Windows Me ( 20), Windows 2000 ( 24),Windows XP ( 29).USB WIA Driver Installation Precautions• You can install the USB WIA Driver if you are using Windows Me/Windows XP. Inaddition, you should read the “USB WIA Driver Limitations” below beforeinstalling the driver.USB WIA Driver Limitations• When you have set the WIA Driver to start a particular application program whenyou connect the camcorder, the program may cause an error message similar tothe following to appear: “TWAIN data source not found. Reinstall the scannersoftware.” If this happens, select [WIA-camera model] in the application programas the TWAIN device.Notes:• USB TWAIN Driver is the driver software for Windows 98 and Windows2000 that is required to load still images/movies into TWAIN-compliantprograms, such as ArcSoft PhotoImpression and ArcSoft VideoImpression.Since it is not a stand-alone program, you must always start it from TWAIN-compliant programs.• USB WIA Driver can only be used with the USB interface in Windows Me/Windows XP. When you connect the camcorder to the computer with a USBcable, the Windows Scanners and Cameras Wizard opens automatically toassist with downloading. This driver also allows you to use WindowsExplorer to display thumbnails of the camcorder’s still images/movies on thecomputer and download still images/movies with standard file copyingprocedures.• If the “Digital signature not found” message appears, click the [Yes] button.