putty integration works only with stored sessions

Hi,
if I call winscp.exe via command line:
winscp3.exe user@hostname or
winscp3.exe user:password@hostname
the call of putty with CTRL P or Commands-Open in putty
or the new icon results in the putty configuration dialog.

If user@hostname is a stored session, everything is ok.
If user@hostname is a stored session, and password is provided via commandline, user:password@hostname it doesn't
work too.

Thanks for info. I'll fix it.