In just two clicks, WinBubble will help you to customize and tweak your Windows Vista easily. Its features cover Customization, Security and Optimization.
NEW Features:

Changing Windows Vista Icons easily (Customizations and Restoration)
Added "Browse" option in changing shortcut icons
additional performance tweaks (Speed up Shutdown and Network Connections)
more security features (complete UAC options and USB storage security)
IE tools
other miscellaneous tweaks
Other Features:

Windows Customizations:

Add/Edit OEM Logo and Information´s
Edit Owner Information
Context Menu Customizations: Move To, Copy To, Take Ownership, Pin To, Turn OFF/ON Aero, Disk Clean-up and
Winbubble launcher
Customize Screensaver (Bubbles, Ribbon and Mystify)
Customize and Remove the Arrow on Shortcut icons
Desktop Icons: Show IE, Computer, Network, Control Panel, Username folder and Public Folder to Desktop.
Hacking Windows Experience Score
Re-enable Hibernation
Enable Aurora Bootscreen guide
Launch WinSAT Aurora
Show Windows Vista Build on Desktop
Enable Slow-Down Animations
Enable/Disable Welcome Center
IE Customizations:

Internet Explorer Window Title
Start Pages
Enable/Disable Pop-up Blocker
Enable/Disable Phising Filter
Enable/Disable Download Complete Notification
Enable/Disable ClearType font
Remove Search Box
Hide Command Bar
Optimizations:

Speed-up Start menu search (Stops searching the File index, Favorites and History, and Communication files)
Clear Multiple Monitor Configuration
3 ways to turn off Windows Aero, Increases Performance for Gaming and Battery Usage
Security:

Remove "New" in Explorer´s Context Menu
Remove "Folder Options"
Disable Taskmanager
Disable AutoPlay in All type of media
Disable access to Display Property
Disable access to Control Panel
Increasing security by forcing to input the Username before entering the windows
Add Encrypt/Decrypt to Explorer´s Right-Click Menu (Context Menu)
Enable/Disable UAC
Disable RUN command in the Start Menu and Task manager
Hide ALL Fix Drives
Hide a specific Drive
Hide Shutdown button and options in the Start Menu
Internet Explorer Security settings 1: Disable File->New, File-> Open, Save As, View Source, Favorites, Right-Click, Download, Tools->Internet Options.
Internet Explorer Security settings 2: Internet Options Window, Hide General Tab, Security Tab, Privacy Tab, Content Tab, connections Tab, Programs Tab, Advanced Tab
System Requirements:
Windows Vista only

WinBubble version 1.6: What's New?
- Tweaks and Customizations -
*WinFlog option was added
*"Open with notepad" context menu was added
*Aurora screensaver was added
*Downloads Folder Icon customization was added
*Changing IE Download Directory
*Added more Tool buttons (System File Check, Reset Folder views, Clear DNS Cache, Hide/Show your comp, Winflog Control Panel)
*Tools button Customizations (Create your own toolbox!)
*Context Menu Customization Tool (Computer, Desktop/Explorer, Start Menu and Network icon)
*Miscellaneous tweaks (Enable Password protect of screensavers, Disable Low disk space checks, Balloon tips, Mobility Center, Windows Sidebar, Disable Failed DNS caching, taskbar thumbnails and Win+Letter Keys)