puTTy
Small SSH/Telnet/rlogin/serial client. Supports adavanced features for all of these protocols like tunneling for SSH.
Firefox
Full featured web browser that is extensible with many plugins.
OpenVPN
Layer 4 VPN client and server for Windows/Linux/BSD and MacOS. Easy to install and configure.
NMap
Powerful port scanner for Linux and Windows
Wireshark
Feature packed packet capture software for Linux and Windows, includes packet filter and capture filter tools with detailed descriptions of packets or sessions.
WinMTR
Simple traceroute tool for Linux and Windows which allows for continous tracing and logging.
VLC
Universal media player and transcoder for Linux and Windows. Plays almost any video/audio file or network stream.
MediaPortal
Fully featured media center with TV server support for Windows Only.
GIMP
Excellent photoshop alternative for Linux and Windows.
Filezilla
Robust FTP/SFTP client and server for Linux and Windows.
OpenOffice
Fully featured Office productivity suite. Create spredsheets, documents, presentations and more… for Linux and Windows.
7zip
Universal archive compressor/decompressor for Linux and Windows.
InfraRecorder
Lightweight CD/DVD writing software for Windows Only.
System Scheduler
Windows task scheduling program built on cron – does not run as service.