File Sender 

Provides: file sharing, great upload and download statistics, audio conference.
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Utility Phone 

FREE Worldwide PC-to-PC communications using: voice, video, online/offline text messaging, text chat and file transfer, all secured using AES 256 bit encryption. Other features include activity notifications and privacy mode.
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IronFTP Server 

IronFTP is a highly flexible commercial-grade FTP server for use by anyone from individuals to global corporations. IronFTP features an NT service based server application combined with a very high quality administration console.
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SSHBlackbox (.NET) 

SSHBlackbox.NET is a comprehensive collection of managed components that add client-side and server-side support for SSH (Secure Shell) to your .NET Framework applications.
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SecureBlackbox (ActiveX/DLL) 

SecureBlackbox (ActiveX/DLL edition) is a comprehensive component collection that adds SSL/TLS, SSH, PKI, SFTP support to your Windows application. This is ActiveX/DLL version.
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PumpKIN 

PumpKIN is an opensource, fully functional, free TFTP server and TFTP client, which implements TFTP according to RFC1350.
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