Opening session in PuTTY from WinSCP stops at "Login as" prompt instead of using credentials from WinSCP

Question

I'm facing strange issue with WinSCP: It works well and I'm able to connect to remote hosts. But when I try to use the "Open session in PuTTY", instead of logging me directly with same credentials, PuTTY gets "stuck", prompting me to "login as".

I've checked the config in WinSCP and it looks fine: "Remember session password and pass it to PuTTY" is ticked.

What else should I check?

I'm using WinSCP 4.2.7 and PuTTY 0.60.3.

Answer 1

As documented:

By default, WinSCP creates temporary site settings for PuTTY (under the name "WinSCP temporary session"). The site settings will contain only the options known by WinSCP, mostly connection options. It will particularly lack any terminal options, so the defaults (Default Settings profile) will apply.

If you want to configure your own options, you can save PuTTY site settings with the same name as a WinSCP site. WinSCP will then instruct PuTTY to open that session (It will not export any settings, nor a connection options).

So if you have an invalid stored session in PuTTY with the same name as your WinSCP stored site, the "Open in PuTTY" function won't work, as it tries to open that invalid site.

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Side note: You are using an obsolete and insecure versions of WinSCP and PuTTY. You urgently need to upgrade!

Answer 2

WinSCP is somehow looking into PuTTY saved sessions that are configured. I had a saved session in PuTTY with same name as in WinSCP ("myApplication - integration"). Somehow, when the session already exist in PuTTY, WinSCP is not able to log me in directly to PuTTY.

I deleted the saved session from PuTTY, and it worked: now WinSCP logs me in directly in PuTTY. And now I see a "WinSCP temporary session" in the list of saved session in PuTTY.