New version (3.0.39) of SFTP Net Drive application is available for download and use.
This build includes the fix of the issue, when login with the password and a key combined didn't work right (wrong password was sent to the server). Other improvements made in the previous builds include improved handling of Change time and Modification time (these are separate attributes).
SFTP Net Drive is the tool that lets you work with a remote SFTP server as if it were a local disk. You can copy the files to and from that disk or open them directly (without prior downloading) in any application, modify those files and save them back (again without creating a local copy) to the remote server.
You can download SFTP Net Drive here.