These are some of very useful free downloads.

Windows XP Security Patch for W32.Blaster.Worm 
Be Protected, Download this patch furnished by Microsoft.
(Also, Go to http://www.sarc.com for the latest virus information and updates.)

AOL Time Disconnect Fix
Fixes AOL Time Disconnect Problems.

Windows Error Codes
Defines Windows Error Codes By Number.

Power Defragmentation Utility For Windows98 & ME
Handles Files Defragmentation quickly and efficiently.

Print Directory Utility For Windows
Prints Directory File Lists in Windows.

Cookie Utility For Windows
Allows Individual Cookie Removal in Windows.

Grisoft AVG Free Antivirus Software
Very good, free antivirus software that finds infections as well, or better, than Norton or McAfee.