I tried to install my DVC 170 two days ago and also have the same problem. Error code ##IDS_DIFX_X86## with the 32 bit driver. I checked for a solution all over the forum to no avail so far. I just called tech support asking them when a 64 bit driver will be available and was put on hold while he checked. He said he was very sorry but he "couldn't tell me that information." So I asked him if they're at least in the process of creating the driver...put on hold again while he checked. Again, "very sorry that he couldn't tell me that information." He said all he could do is email me if the driver becomes available.
On the driver download page there are quite a few 64 bit drivers available for other devices, but not ours. I have to wonder, especially after the unsatisfactory tech support call, if they don't intend to create the drivers at all. Think of how many people with new 64 bit systems are going to purchase these unsupported devices only to find out after hours of problem solving, they're out of luck. If I had the time I'd write reviews at sites like Amazon, Best Buy, Curcuit City, Buy.com, etc., suggesting they first check here for 64 bit driver availability before purchasing . I'm not pleased to say the least.
Kevin
Vista Home Premium 64 bit, Intel Core2 Quad @2.4GHz, 4Gb ram, nVidea GeForce 8500GT 2.2Mb, Studio 10.8, DVC 170