and was designed for 32-bit systems. The current version is DIALux evo (9.x or higher), which is 64-bit, actively maintained, and free.
Here is the full content regarding the request for : dialux 4.13 software free download 64 bit
You can download DIALux 4.13 for free directly from the developer's website. It is fully compatible with 64-bit Windows operating systems. and was designed for 32-bit systems
DIAL GmbH strongly recommends transitioning to DIALux evo and does not provide technical support or official downloads for version 4.13. which is 64-bit