From the web site menu, click on "Support", then click on "Downloads", then click on "CAESAR II".
The exact file you want depends on your license. For a "full run license", you want to grab the file "c2040528F.exe", for a "limited run license", you want to grab the file "c2040528L.exe".
All builds are "comprehensive", that is they include all previous builds for that version.
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Regards,
Richard Ay - Consultant