unfortunately, i saw on their site that they released a a driver for win7 but the 64 bit is only for older models not the dvc170:
"Includes Windows Vista and Windows 7 drivers (for both 32 and 64 bit) for the DVC 100, 101, 103, 107 hardware NOTE: DVC130 and DVC170 don't have 64 bit drivers and can only be used with Windows XP and Windows Vista 32)"
link is here:
very very hard to download - always download stops.
pinnacle capture hardware is really bad quality even on xp i had so many problems with it - i have it now for 5 years and i really never managed to operate it without it crashing my operating system.