Posted by flywire on Apr 18, 2020; 2:51am
URL: https://forum.librecad.org/BRAK-skojarzenia-plikow-DXF-tp5718775p5718779.html

> I am using Librecad portable on Windows 7 64-bit.

It will be controlling file associations.

> I am only a user of my PC and I do not have Administrator rights.

Would you like to install on the computer as a user? Trivial to [hack and] change installer from HKEY_LOCAL_MACHINE (HKLM) to HKEY_CURRENT_USER (HKCU) and recompile.