I don't think the RSIM target is meant to be deployed onto machines that do not have MATLAB/Simulink installed. AFAIK, tt is meant for rapid-prototyping on the same machine where Simulink runtime libraries are present. You can use the GRT/ERT targets to generate a standalone executable that can run without MATLAB/Simulink.
The MCR (MATLAB Compiler Runtime) is needed only for binaries produced by MATLAB Compiler/Builder products. However, Simulink is not supported for deployment using these products - it is meant only for MATLAB code.
