"WhatsOpen is a quick utility that came out of an MMUG meeting. Someone possed a question regarding how to tell what appliation has a volume open so they could quit out of it and eject the removable media.

It is a somewhat common error that a file on a removable device is held open by one thing or another and the system will not eject it. This program lists all open files on your system, with an option to filter them, and then allows you to kill the application that has a selected file open.

New in this version:
Added IPv4 sockets
Added filtering for file types

Universal Binary
License: Freeware
Requires: OSX 10.5+
Size: 5.9Mb "