For those looking for DIALux 4.13 (the classic version) – important info first:
If the FTP link is dead, reply here – I have a clean copy of 4.13 I can share via Google Drive (hash-checked). Do not post direct download links to random "crack" or "keygen" sites. Emphasize that DIALux has always been free (no piracy needed) – but version 4.13 is simply abandoned. dialux 4.13 download free
⚠️ DIALux 4.13 is by the manufacturer. It does not work properly on Windows 11/10 (especially 64-bit) and cannot use modern IES/LDT files from 2018 onward. The official free version today is DIALux evo (download from dialux.com). For those looking for DIALux 4