I've been able to double-click on .dxf files in Windows explorer and have that launch DraftSight. Suddenly now when I do that I get: "This action is only valid for products that are currently installed". I see that this issue has been asked about in the forum 2 or 3 other times, each with no response.

I've deactivated, then uninstalled DraftSight 2020 SP1 x64, then purged all references in the registry to DraftSight and Dassault that I could, plus manually deleted the Dassault & DraftSight folders found in C:\\ProgramData and C:\\Users\\\\AppData\\Local & \\Roaming folders. Then re-installed and re-activated. This did not affect the problem.

I also changed the Windows file association for .dxf files from DraftSight to another program (Alphacam), and then back again. No help.

Is there anyone who could possibly shed any light on this?

Thanks --