Do not execute the master setup file first. Instead, navigate into the extracted directory to establish the driver baseline manually:
Whenever possible, rely on official installation files directly hosted on the Apple Support Site . Step 1: Extracting the Zip Archive itunesollite641255zip+install
This likely represents a version number or build ID (e.g., version 12.5.5). In the history of iTunes, version 12.5.5 was a notable update that improved app performance and fixed security vulnerabilities. Do not execute the master setup file first