Memory leak in WinSCP 4.2.7 (?)

I discovered a couple of Windows 2003 x64 (R2, SP2) terminal servers this morning where WinSCP was using upwards of 400MB of RAM, and about 10MB each of paged and non-paged pool memory (which had exhausted the pools, causing new users to be unable to log on). I was able to contact one of the users, who said he'd had the process running for about a week (idle most of the time). It would have been connected to a Unix host using SCP or SFTP in all cases.
Is there anything I can do to help provide more information on this? E.g. duplicate the problem and then send a (compressed) memory dump somewhere? I'm going to tell the users not to leave it running continuously, but it would be nice to not have to worry about that.

Only memory leak I'm currently aware of is small leak when connection is lost (and reconnected). Do you think it is possible that the connection to the server was lost many times during the period?