If you are the owner of an Entttec DMXis using the DMXis its original plugin with GP, this is perhaps of interest for you. Here is the answer of ENTTEC to a question regarding this new EMU software with regard to the original DMXis plugin:
The developer of DMXIS DB Audioware have said that they will continue to provide essential software support, but DMXIS software is unlikely to evolve much further. Any support enquires should be sent to support@db-audioware.com.
ENTTEC was the manufacture of the hardware for DMXIS and also the seller of the DMXIS software, though we have now moved onto working with our EMU software which as you mentioned is the succesor. Currently, EMU is free to use for a limited time only, in the coming months we will be annoucing the structure for paying for EMU which is likely to be in the form of a subscription (similar to Netflix etc). We will also be releasing a new EMU hardware, however the DMXIS hardware will still be compatible with EMU software.
For now, please visit our website to download the software to try it whilst it is free to use and keep an eye out for the annoucements regarding the pricing structure on our website and social media channels.