I have full root access to a virtual server. Windows 2008 running IIS7. I installed WordPress through the Web Platform Installer and got a site up and running, I can change themes and do upgrades. I doesn't ask me for any FTP details when I do.
I tried to install a second WordPress instance, different domain. This is running ok. When I try to install a different theme (using the wp-admin pages) it asks for FTP details.
I am assuming that the first (web platform installer) install set up an FTP server.
How can I find the login details?