You could have downloaded ShowInstalledAppsVersion 1.2 for Mac from our software library for free. This free software for Mac OS X was originally designed by Takayama Fumihiko.
From the developer:
ShowInstalledAppsVersion is a free application that shows you what version of NoEjectDelay application has been installed on your Mac computer. This application has a user friendly interface and lives in your menu bar. This app requires SDK for new OS X.