Downward Compatibility where in my case I have the 2020 licenses for DraftSight but when I installed 2017 the license is not picking and I get a error message I have cross verified all the preference as similar as CATIA V5, the above version lic should support the lower version as well, and please find the error message I was getting attached in the post,

Please connect with me TSS4@3ds.com if anybody has an answer or please share link where I can find the answer

Thank you DraftSight Support Team, :)