The software appears to be discontinued. I've searched on various websites, but the installation package is missing. There is also no possibility to contact the manufacturers since their website only displays a logo and an email that surely can't be used for product support. Typically, when you attach the device, the software should install automatically or it should be found on the storage partition, accessible through Computer.
Alternatively, change the settings of the application to MTP connection mode and then attach the device to PC and you should be able to work this way without the software.