IconPackager is a program that allows you to change all your Windows icons in a single click by applying "packages" of icons. There are hundreds of icon packages available on the Internet including on WinCustomize.com. It is the world's leading program for changing your Windows icons.

IconPackager 2.5 has a host of new, useful features including:A more thorough preview window for showing all the major icons in a selected icon package

• Full integration with IconDeveloper allowing users to instantly edit and change virtually any icon on their system
  
• Icon Explorer can explore icons in .ICLs, .EXEs, .DLLs
  
• Smart Packaging - icon packages are now created with duplicate icons removed. New icon packages will thus be megabytes smaller in size.
  
• Encrypted .iptheme's to ensure icon packages are applied as designed
  
• Integration with Stardock skincast where it can automatically download from the net the latest featured icon package.
  Dozens of little tweaks and changes

IconPackager is a free download. The registered version is $14.95 and adds Windows shell integration and other features. It is also part of Stardock's popular Object Desktop suite of desktop enhancement software.

Screenshots:
http://skins4.wincustomize.com/yangge/ip/xToonV.JPG
http://skins4.wincustomize.com/mormegil/ip/ChristmasTimeIcons.jpg
http://skins4.wincustomize.com/Pixtudio/ip/ss_CDII_ipack.jpg
http://skins4.wincustomize.com/mormegil/ip/FauxS-XPOnyx3.jpg

Download: https://www.stardock.com/products/iconpackager