How to Install Rhino 4 Automatically [McNeel Wiki]
The lines below can be executed manually, or more conveniently, as part of a batch (.bat) file. 1. Make sure Rhino 4.0 is not installed on the target computer, or execute these lines before the install: msiexec /x{5C2CBFFD-FC3B-4AA9-993B-CE2B8DA25B87} /qn...