Extra file is opened when using IDLE Python editor

As a newcomer to your wonderful tool, I'm hoping you can help with this odd problem.

I have the Python language editor called IDLE configured in WinSCP to open files with extension *.py. Every time I open a .py file from WinSCP, it opens a second IDLE window with no contents and a filepath shown in the title bar as "C:\Documents and Settings\Ken\%1". Closing this extra window does not seem to prevent me from saving changes in the real .py file back to the server. However, each time I save, WinSCP reopens that extra window again.

Changing the WinSCP "External Editor Options" for this editor doesn't seem to change this behavior. Is there a way to prevent WinSCP from opening this extra window?

~ TIA
~ Ken

Version = 4.1.8 (build 415)
Interface = Explorer
Session protocol = SSH-2
SSH implementation = OpenSSH_4.5p1 FreeBSD-20061110
Encryption algorithm = aes
Compression = No
File transfer protocol = SFTP-3
------------------------------------------------------------
Server host key fingerprint
ssh-dss 1024 b3:00:46:ed:1a:f7:9b:a2:6f:0d:5c:a4:e9:e3:03:6f
------------------------------------------------------------
Can change permissions = Yes
Can change owner/group = No
Can execute arbitrary command = No
Can create symlink/hardlink = Yes/No
Can lookup user groups = No
Can duplicate remote files = No
Can check available space = No
Can calculate file checksum = No
Native text (ASCII) mode transfers = No
------------------------------------------------------------
Additional information
The server does not support any SFTP extension.

I'll test it and let you now.

I does not happen to me. How did you specify executable for IDLE in WinSCP editor preferences?

Aha. I think I see my mistake. I configured this editor into WinSCP by just copying the command from my Windows Explorer "file types" list. It looked like this:

After trying a few things, the entry for IDLE that seems to work is:


~ Thanks for your help!
~ Ken