Desktop

• Save icon layout for each screen resolution: DeskSave 
• Automation (macro, mini apps and hot keys): AutoHotKey 
• Tray area management: Tray Wizard 
• File Manager: Directory Opus (commercial; forgive me, I'm an ex Amiga user ...)
  

Development

•  File archiving / backup: File Hamster
  

Internet

• Istant Messanger: Miranda 
• Download Manager: Free Download Manager 

Media

• Media Buring: CD Burner XP
  
• CD Interface: CD Interface 2
• Find Codecs: Codec Installer
• Bitmap Painter: Artweaver 
• Image Noise Reduction: NDNoise 

Mobile

• GPs Navigation: Amaze 

Office

• Public speech, presentation: KeyJNote
• Office & Outllok processes management: Knock Out 

System

• Anti Spyware: Windows Defender
• File archiving / backup: File Hamster
• File Manager: Directory Opus (commercial; forgive me, I'm an ex Amiga user ...)
• Anti Virus: Avast! Home
• System cleaner: CCleaner
• Personal Firewall: Comodo
• WiFi Management: NetStumbler
• File Search (w/out index): AstroGrep