Free Software For Windows

Office stuff

Far Manager
Far Manager is a program for managing files and archives, ftp client. It provides a simple and intuitive interface for viewing files and directories, editing, copying and renaming files, and many other actions.

PDFCreator
PDFCreator is one of the best known programs to create PDF files from any application. Virtual PDF printer. Just print any document choosing this printer. (Mine does not understand spaces inside filenames)

Scanner Copier
Scanner Copier scans multiple pages in Windows and prints them as a single document. This can be used in conjunction with PDFCreator in order to make PDF files from scanned documents similar to other 'scan to PDF' software.

Sumatra PDF
Sumatra PDF is a free PDF, eBook (ePub, Mobi), XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader for Windows. Sumatra PDF is powerful, small, portable and starts up very fast.

Foxit Reader
Foxit Reader is a free PDF document viewer and printer, with incredible small size, breezing-fast launch speed and rich feature set.

Adobe Reader
Standard software for electronic document sharing. Use Adobe Reader to view, print, and collaborate on PDF files.

WinDjView
WinDjView is a fast, compact and powerful DjVu viewer. DjVu format is often used instead of pdf.

7-Zip
It lets you compress files to ZIP and some other kinds of archives. Extracts ZIP, RAR, ARJ, TAR and etc.

ZipGenius
It lets you compress files to ZIP and some other kinds of archives. It supports more than 20 formats of compressed archives, including RAR, ARJ, ACE, CAB, SQX, OpenOffice.org documents and the excellent 7-zip.

Crimson Editor
Professional source code editor. Syntax Highlighting for HTML, C/C++, Perl, Java, Matlab, LaTeX, ...

Notepad++
Professional source code editor. Syntax Highlighting for HTML, C/C++, Perl, Java, Matlab, LaTeX, ...

IrfanView
Very fast, small, compact and innovative FREEWARE (for non-commercial use) graphic viewer. Many supported file formats. Batch processing.

gimp
GIMP is the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages. This is the Adobe Photoshop replacement.

Paint.NET
Paint.NET is free image and photo editing software for PCs that run Windows.

Audio and Video

Audacity
Easy-to-use and multilingual audio editor and recorder. Edit Ogg Vorbis, MP3, WAV or AIFF sound files, change the speed or pitch of a recording and etc.

K-Lite Codec Pack
K-Lite (Mega) Codec Pack is a collection of audio and video components for Microsoft Windows that enables the operating system and its software to play back various audio and video formats generally not supported by the operating system itself. K-Lite Codec Pack also includes several related tools, including Media Player Classic, GSpot Codec Information Appliance and Codec Tweak Tool. I would recommend to use the full version.

VirtualDub
Video capture/processing utility for 32-bit Windows platforms. mainly geared toward processing AVI files, although it can read (not write) MPEG-1 and also handle sets of BMP images.

TMPGEnc
Converts *.AVI files to MPEG1

Auto Gordian Knot
Tool for DivX / XviD backup utility. With support of DVDs, MPEG2 (such as DVB captures and transport streams), MPEG1 sources along with AVI/DV sources encoding into your favourite MPEG4 format was never as easy

foobar2000
An advanced freeware audio player and converter

VLC media player
VLC is a free and open source cross-platform multimedia player and framework, that plays most multimedias files as well as DVD, Audio CD, VCD, and various streaming protocols. No codec packs needed. Media Converter and Streamer. It is simple to use, yet very powerful and extendable.

CapturePad
CapturePad is a video-capture utility that allows you to capture any screen activity into standard AVI files, JPEG sequences, or Flash SWF file. Free version provides basic functionality.

Dorgem
Dorgem is a webcam capture application with motion detection that can put the captured image or video on an FTP site as well as a local disk, all with their own time interval..

Programming & System

G95-MinGW (Link1, Link2)
Fortran 95 compiler.

Open Watcom
C/C++, Fortran 77 compilers.

Visual Studio Express
C++, Visual Basic compilers.

wxWidgets
wxWidgets lets developers create applications for Win32, Mac OS X, GTK+, X11, Motif, WinCE, and more using one codebase.

MPICH2
MPICH2 is a high-performance and widely portable implementation of the Message Passing Interface (MPI) standard (both MPI-1 and MPI-2). MPI is a language-independent communications protocol used to program parallel computers.

zFTPServer (Free edition)
A Windows based FTP server with focus on clever Active Directory integration and powerful, effortless administration.

3RVX
3RVX is a skinnable volume display and controller. It shows your sound volume level with its on-screen display (OSD) and also allows you to control the volume via a skinnable slider or CUSTOM HOTKEYS. Supports drive eject notification, mouse hotkeys, and a wide range of customization options.

VirtualBox
VirtualBox is a cross-platform virtualization application. Makes your computer run multiple operating systems (inside multiple virtual machines) at the same time.