FileZilla Server - Download FileZilla Server 0.9.60.2 for Windows
Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.
ProFTPD - The Official ProFTPD web site. ProFTPD is a high-performance, extremely configurable, and most of all a secure FTP server, featuring Apache-like configuration and blazing performance.
Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.
vsftpd - Very secure FTP Daemon, a secure, fast FTP server for UNIX systems, including Linux.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.