Rename the zip file to WinCommunicationExt.zip
Copy-paste the above file inside the Site24x7 Windows agent installation directory - C:\Program Files\Site24x7\WinAgent
Navigate to regedit and set HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\ManageEngine\Site24x7WindowsAgent\Monitoring\UseCommunicationExt to true
Restart the Site24x7 Windows Agent service from services.msc
This will ensure the Windows server monitoring agent continues to perform data collection, even if TLS 1.2 is not installed in your servers.