Running Inroads SS2 and SS4 on same machine

I am currently running microstation  08.11.09.832 ss4  I am also running Inroads  08.11.07.615  mandated by our local DOT,

I have down loaded and installed  Inroads 08.11.09.878 ss4,,   try to open it , crashes out

of course i googled this first and see I need some sort or switch  or  double Load Inroad ss1 and ss4 config?

tried with no luck 

I need some step by step help on this 

thanks

Karl Detrick
Cadd Manager 

Creighton Manning