There are procedures on the web that detail how to combine CygWin + PuTTY + Pageant to end up with the ability to SSH out of and *into* a Windows platform from either Linux or Windows.

Bonus: The procedure I found uses Pageant as a PKI key agent, allowing you to use RSA keys. This allows you to perform secure log-ins between platforms, yet only enter your password once, at the beginning of your session; the agent stores your (unlocked) private key and handles the PKI password-less connections from that point until you end your session.

Works with any combination of Linux-Windows, and Windows-Windows. I only wish there were an automated installer...