New tool for protecting your data on a shared computer

Sure, you can use EFS encryption (if you use the Pro version of XP) to encrypt your private data, but what if someone else uses your computer when it's logged on with your user account? Then they can access all your EFS-encrypted files. Last week, Microsoft released an add-on called Private Folder 1.0 that solves this problem by letting you create a private folder that's password protected, so that even when your account is logged on the files in that folder are kept private. Warning: you have to go through the Windows Genuine Advantage validation process to download the program. Here's where you get it: