CCleaner for U3 is a freeware system optimization, privacy and cleaning tool that can be run from your U3 capable removable drive. It removes unused files from your system - allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of your online activities such as your Internet history. Additionally it contains a fully featured registry cleaner. But the best part is that it's fast.

ClamWin 0.94.1 for U3 is a Free Antivirus program for Microsoft Windows 98/Me/2000/XP/2003 and Vista to be run from a U3 capable removable drive, it has high detection rates for viruses and spyware.

The Web Platform Installer Beta (Web PI) provides a single, free package for installing and configuring Microsoft's entire Web Platform, including IIS7, Visual Web Developer 2008 Express Edition, SQL Server 2008 Express Edition and the .NET Framework.