This is for a customer of ours. I have tried everything I could to address the problem to no avail.
Here are the facts as I know them.
1. FSV2 unit itself is fine. We test each of them before shipping them out.
2. Unit works fine on Vista machine.
3. Unit refuses to work properly on XP SP2 machine.
4. Drivers fail attempting to install a file that does not exist in the driver package on the EFILive download page (I forget the name, but it is clearly part of *A* FTDI package, just not *THIS* FTDI package)
5. We tried uninstalling the driver through device manager.
6. We tried just "updating" the driver through device manager.
7. We tried uninstalling through control panel (which says it was successful) and then rebooting/installing FSV2 and manually pointing it to the drivers (unsuccessful)
8. We tried FTClean from FTDI's website
9. We tried manually deleting .INF and .DLL files from windows/system32/drivers.
I just can't figure out how to excorcise the driver ghost on this laptop. Any "nearly" successful attempt at getting the new drivers in always results in Windows asking for the disk with the FTDI drivers on it, because it wants a file that does not exist in the driver package.
Does anyone have any tried and true methods that work every single time to resolve this problem? Is the driver package in the downloads section just a driver update or is it 100% complete? I have not checked the INF files to see if they rely on some other file that already exists or should exist due to prior install or just as a native part of the OS.