Where my desktop is located Winscp version 5.5.4 (build 4433) is packaged to install using installShield tool that when run does not give any option to add extensions. Is there a way to add drag&drop feature without the installer? After speaking to a windows admin where the desktop is located, I am told repackaging the installer to activate the extension is not an option. The <<Use Shell extension>> is greyed out. I can drag and drop into winscp but not out.
I added a screenshot showing the installShield modify options.