I have also tried it on x64. The version I have 5.7 -- will not erase files and the features to wipe freee space on schedule and to wipe the swap file on shutdown seem to hang the system preventing turn off of the computer. I would appreciate a version that workd with x64.
I've used eraser for so long that I can't remeber now. Its just one of those essential tools in your toolbox that you feel lost without it. Simply there isn't any better commercial program or otherwise out there that can do its just so simply and elegant that eraser has.