Expired Cookies Cleaner is a tiny (27Kb zip) portable software that scans your computer and removes expired cookie files. Thus it speeds up your PC and free up some disk space (especially on FAT32 file systems).
Expired Cookie Cleaner can also optimize the files that stores cookies by removing useless cookies from it. One file may contain more than one cookie. If some cookies from this file are expired, then the program deletes those cookies from that file and reports the file as optimized.
The program is compatible with Windows 98/2000/XP and Vista and supports Internet Explorer 4 and above.[Via]