telnet server

GuildFTPd is a very good free FTP server with all the necessary features

SMTPBeamer is a complete Internet and Intranet e-mail server

Full-featured chat server for powerful Joomla: live, easy and affordable.

you can now remove SPAM emails directly on your POP3 or IMAP4 server.

Create tests by XML messages to send to the server and expected results.

WinSocks - Socks Proxy Server

NTRadPing is a Radius Server Testing Tool

Keep your franchise computer time accurate by syncing with public time server!

Provides an integrated environment of tools and server infrastructure

A simple, small and free FTP server for Windows