I asked the hionorable forum for help in getting the latest published definition for the titled
Windows defender 1.1.1593.0 on Windows server 2003 Standard x64 Edition SP2
ie not up-to-date, and I only received a migration recommendation.
https://social.technet.microsoft.com/Forums/windowsserver/en-US/adb103fb-3003-4ab7-862c-20b6bbb47434/windows-server-2003-standard-x64-edition-sp2-windows-defender-1115930?forum=winserversecurity
I understand that it is not possible to download the definitions from the Microsoft website in the usual way, but it is possible that it is possible in any other way (maybe)
or from some archive or abandoware site, etc.
Thanx a lot