Using a WIA Driver (similar in function to the Twain Driver) with Windows Me or Windows XP provides two advantages: (1) when you connect your camera to the computer, it will give you the option of download pictures using the Windows Scanners and Cameras Wizard, which will start automatically in Windows Me, and (2) your camera will show up in Windows Explorer as another storage device on the 'tree' on the left side of the screen.
The Windows Imaging Acquisition package is an integral part of Windows Me and Windows XP (the WIA features are not available in Windows 98 or Windows 2000). WIA stands for Windows Imaging Acquisition.
What is a WIA driver? How do I install the WIA driver for my camera?