You could have downloaded NwnUpdater 1.0.3 for Mac from our software library for free. The bundle id for this app is org.openknights.nwnupdater. The program belongs to Games. Commonly, this program's installer has the following filename: nwnupdater_pre1.0_3.dmg. The actual developer of this free software for Mac is Openknights. The following version: 1.0 was the most frequently downloaded one by the program users.
From the developer:
This application is designed to enable owners of Macintosh Neverwinter Nights to automatically update their software to the latest available version, directly from the BioWare FTP site. Clicking the 'update' button will go and check to see if any newer versions of the software are available, and will download and install them for you.
You may want to check out more Mac applications, such as WiiJunkies, Rawr or zeroWii, which might be related to NwnUpdater.