File Management

7zip (file compression)
Xplorer2_lite (dual paned and tabbed file manager)
Agent Ransack (file search utility)
ISODisk (Mount ISO as virtual drive)
ISO Creator (Create ISO from files)

Graphics

GIMP (image editor)
ImageMagick (command line imaging tools)
IcoFX (extract, edit, create icons)
IrfanView (image viewer)
Blender (3d modeling)
Yafray (rendering engine)
Inkscape (illustrator clone)

Office/School/Home

OpenOffice (full office suite)
OpenWorkbench (project management suite)
Dia (visio replacement)
GCad3D (autocad replacement)
PDFCreator (print to pdf)
StarDict (dictionary)
Converber (measurement converter)
Moffsoft FreeCalc (scientific calculator)
GraphCalc (2d/3d graphing calculator)
Thunderbird (mail client)
Keynote (notetaking)
Sumatra (pdf viewer)
PDF XChange (pdf viewer/conversion)
PDF SAM (splits or merges pdfs)
SimpleD Budget (budget manager)
Gourmet (recipe manager)
Sword (bible study)

Multimedia

OpenDVD (dvd player)
VLC (video player)
Foobar2000 (audio player)
Juice (podcast client)
Audacity (audio editor)
HandBrake (dvd to mpeg4 ripper)
DVDFlick (create featured dvds)
CD & DVD Label Maker
Avidemux (video editor)
MediaCoder (media transcoder)
CDBXP (burn cds/dvds)
CDeX (rip cds)
CCCP (audio/video codec pack)
MediaPortal (media center)

P2P/Torrent

KCeasy (P2P)
uTorrent (torrent) 

System

Console2 (command line shell)
TCCLE (command line interpreter)
EASEUS Partition Manager
JDisk Report (file tree reports)
Defraggler (hard drive defragmenter)
Synergy (share keyboard and mouse between computers over network)
Sun Virtual Box (virtual comp)
Silver Add/Remove (appwiz.cpl replacement)
Device Remover (devmgmt.msc replacement)
Registrar Registry Manager Lite (regedit.exe replacement)
Minimixer (volume control replacement)

Customization

Geoshell (shell replacement)
BBLean (shell replacement)
EvilDesk (shell replacement)
LiteStep (shell replacement)
ShellOn (shell switcher)
Bootskin (change your bootscreen)
LogonLoader (change your logon screen)
Y'z Dock (os x style app launcher)
Executor (linux style launcher)
Taekwindow (x windows functions)

Internet/Server

Firefox (web browser)
RSSOwl (news feeds)
Putty (ssh client)
WinSCP (sftp client)
OpenVPNGui (vpn client/server and gui)
TightVNC (vnc client/server)
FileZilla Server (ftp server)
hMailServer (smtp server)
Apache (web server)
OpenSSH (ssh server)
DualServer (dns/dhcp server)

Security

ClamWin (antivirus)
SpywareBlaster (block spyware)
SpywareGuard (real time spyware protection)
Eraser (DOD standard deletion)
TrueCrypt (file encryption)

Development

ActivePerl (perl interpreter)
OpenPerl (perl ide)
ActiveTCL (tcl nterpreter)
ASED (tcl ide)
Eclipse (java ide)
AutoIt (autoit interpreter)
SCITE4AutoIt (autoit ide)
Koda Form Designer (autoit forms)
Python (python nterpreter)
Wing IDE (python ide - student version is free for students)
Bloodshed Dev C++ (C/C++ ide)
Lazarus (free pascal ide - delphi clone)
InnoSetup (inno interpreter)
ISTool (inno ide)
Kompozer (web development)
SQLite3 (portable database engine)
PHP (php interpreter)
DevPHP (php ide)
Ruby (Ruby interpreter)
chmProcessor (help file authoring)
PADGen (PAD file generator)
Free CSS Templates (aides in developing CSS)

Games

Alien Arena (multiplayer fps)
UltraStar Deluxe (singstar clone) 
Hurrican (turrican clone)
Dark Oberon (warcraft II clone)
FreeCol (civilizations clone)
Domination (risk clone)
Armagetron Advanced (3d tron clone)
Battle for Wesnoth (fantasy rts) 

Projects :