When explorer.exe restart, the WinSCP's tray icon disappear

OS: WinXP SP3

During WinSCP transmit file to server in SFTP mode and minimize it to tray, kill the explorer.exe in task manager and then restart the explorer.exe, the WinSCP's tray ico is disappeared, but i can see it from task manager's task list, the transmit also go on.

What version of WinSCP are you using?

This bug has been added to the tracker:
https://winscp.net/tracker/898