The DiMAGE E500 supports Windows 98*, Windows 98 Second Edition*, Windows Me, Windows2000, Windows XP Professional, WindowsXP Home Edition, MacOS 9.0 to 9.2.2 and MacOS X v10.1.3 to 10.1.5, v10.2.1 to 10.2.8, v10.3 to 10.3.8 for USB connection. *For Windows 98/98 Second Editin, it is necessary to install the USB driver included in CD-ROM. Please connect the camera and PC via USB cable after installing the driver.