open server

Runs scheduled backups of SQL Server databases, zips them and sends to an FTP.

ejabberd is a Jabber/XMPP instant messaging server.

Ding some research in the field of telnet server fingerprinting.

Backs up your current DNS server address and then changes it to Google’s DNS.

IceChat Multi-Server, Scriptable, and fully customizable IRC Client

Use IMAP to pull mailbox messages and folders from other IMAP server.

A PHP Tester and Debugger which is also an extremely lightweight PHP Web Server.

httpdASM is a web server (httpd), written in ASM, running on Windows.

Powerful web server log analyzer

Squiggle is a free lan messenger that does not require a server.