Resuming works only with SFTP protocol? Have you selected in on login dialog? During upload, you should see status of resuming on the progress dialog. You must see there: 'Resume: Enabled'. When transfer fails, after you reconnect, you should see file with extension .filepert in remote directory.

I have a slow wireless connection that is not very reliable. It disconnects from time to time. When I transfer files and my connection drops, obviously the transfer ends. The file is fairly large, 22 meg, and under preferences->transfer enable transfer resume "Files above 50kb" is selected. The program will not resume and the only option I get is to restart the program with a fresh upload. Is there anything else that I have to do to get the program to resume the upload. I do use psftp and "reput" and it works, but for some reason WinSCP doesn't.

Thanks in advance,

Gary