SVG Drawing: InkScape

Bitmaps: GIMP

3d Drawing: http://www.blender.org

Virtual desktops: VirtuaWin

Yellow notes: Stickies

Virtual CDroms/DVDs (mount ISO images): daemon tools

Directory/File Synchronization: fullsync

Bestandsysteem encryptie (encryped volumes on harddisk harddisk, USB Stick, etc): TrueCrypt

Screen Capture/Recording: camstudio.

Compression utility: 7 zip

Favorite music player (with foosic installed): foobar2000 (bcmwltry.exe interferes with this player)

Recording Audio streams (e.g. radio 4 ): VLC

MP3 Splitting and recording mp3DirectCut

Making MP3 from my CDs EAC

Burning CD's from audio recordings Burrrn

Converting audio formats switch

Scheme: PLT Scheme

C/C++: MinGW+MSys+MSys+Developer toolkit, Visual C++ Free Edition

X11: Cygwin

UML: StarUML

UML: ArgoUML

Mind Mapping: FreeMind

Concept Mapping: CMAP

Ontology Engineering: Protégé

LDAP: LDAP Admin