Download of What's Keeping Me 2.4 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this free software for Mac is HAMSoft Engineering. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The program relates to System Tools.
From the developer:
What's Keeping Me eliminates the problem where you can't empty the Trash or eject a disk because something is preventing it. Usually the reason is because some application has a file open, and thus you can't get rid of the disk or trash the file. That's why we made What's Keeping Me! What's Keeping Me will identify the application that is holding the item open.
You may want to check out more Mac applications, such as iDupe, XNJB or ACTPrinter Mac, which might be similar to What's Keeping Me.