Download the zip file and unzip it. Then, you can get the folder “nays1dp_v3f”.
Move this folder to the “solvers” folder in the folder where iRIC is installed. Usually, the folder “solvers” exists at “C:\Users\xxxx\iRIC\solvers”, where “xxxx” is the user name of your PC.
Then you can choose “Nays1Dp v1.00.8 6bit” as a solver from solver selection menu.