This is a handy tool which allows to clear temp files and helpful to maintain multiple users on same machine. It is also very useful during running test cases.
Download at : AR Cache Purge Tool
“AR Cache Purge automates the process of clearing BMC Remedy user cache on client machines. It first checks the registry for the Home folders(s) and then removes the .arf and .arv files. It handles multiple users and home folders on a single machine”.
Credits to : stevenwendal
Note: Please remeber that you are on your own when using any tool. :)