This site seems to have a good number of "Generic" laptop drivers - I obtained another SD reader and a webcam driver that both work on Windows 7 x-64. Twinhead GmbH
Select a model that looks something like your laptop -- if its not there the H12Y modules seem to work pretty well in a lot of laptops.
Don't worry about the german site - its pretty obvious what to download even if you don't speak German.
If this model doesn't work try others -- you'll have to experiment but I haven't yet found a laptop that doesn't work with ONE of these drivers.
A bit of a pain but "Trial and Error" is your best bet here.