Here is the driver for the Eminent EM1085R1USB BlueSoleil driver adapter. This was released in 2013 and was the last release of the driver. You will note that this adapter was a Bluetooth Class II (10m) adapter and was very common a few years ago. You can download the driver listed below.
Eminent EM1085R1USB BlueSoleil Driver
Note also that the driver was made for Windows XP / Vista / XP 64 bit / Vista 64 bit / 7 / 7 64 bit operating systems. If you have a Windows 10 operating system then you will need to install your driver in ‘compatibility mode’ when installing it. Open the zip file and extract the files and then ‘right-click’ on the setup file to install the driver as it will offer you a compatibility mode.