Incorrect icons for \ under Vista
This is a minor issue, but maybe that means it's easy to fix. When I run WinSCP on Vista and browse on the remote Windows machine to the root (ctrl+\), the icons for C:, D:, E:, etc. reflect the icons of my local computer. This causes the remote E: drive to look like a CD-ROM drive when it is in fact a RAID array, and the remote F: drive to look like a network-mapped drive even though it's really a local hard drive.
(I think this may have happened in 3.8.2, too. I can check for sure if you need.)
(I think this may have happened in 3.8.2, too. I can check for sure if you need.)