Free disk space manager

[Conradl]

Hey guys,

I'm migrating a users Windows 2003 file server to a SAN. For a data migrations I normally recommend that the customer buy JAM TreeSize Professional, clean up old data, mp3s etc, and then migrate to the new system. This particular customer wants a free version....

Is there a freeware alternative that can do this; specifically WRT reporting e.g. find *.exe > 1MB where create date - access date < 6 months ?

Thanks!