Nikon Message Center 2
Nikon Message Center 2 2.4 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The program is included in System Tools. The actual developer of this free software for Mac is Nikon Inc.
The program's installation files are commonly found as s-nmc2_-020100mf-allin-32b.dmg, s-nmc2_-020101mf-allin-32b.dmg, S-NMC2__-020101MF-ALLIN-32.dmg, S-NMC2__-200MF-ALLIN-32BIT.dmg or s-nmc2_-200mf-allin-32bit_.dmg etc. The most popular versions of the program are 2.1 and 2.0.
From the developer:
Nikon Message Center 2 is a software application and service that informs users of the latest information regarding updates to Nikon software and firmware upgrades for Nikon products.
You may want to check out more Mac applications, such as Nikon Camera Control Pro, Nikon Capture 4 or SparkLE MIDI Control Center, which might be similar to Nikon Message Center 2.