I can reproduce this with 4.2.7 on Windows 7 64-bit.
I had left WinSCP connected to a Ubuntu server over the weekend. When I came in, the Ubuntu server had been rebooted and when I went to close WinSCP, I got this error message and had to kill the process.
I had left WinSCP connected to a Ubuntu server over the weekend. When I came in, the Ubuntu server had been rebooted and when I went to close WinSCP, I got this error message and had to kill the process.