Notes about the ESU file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The ESU file type is primarily associated with 'LokSound' by Electronic Solutions Ulm GmbH & Co. KG. LokSound decoders combine a digital decoder and a digital sound module. You can drive your locomotives digitally and at the same time replay the original sound of your locomotive as well as special sound effects such as horn or whistle.