You can find the license file Ranorex3_Server.lic in C:\ProgramData\ which is a hidden folder. So you must unhide it first (in explorer).
I would suggest to ignore copying the Ranorex libs and assemblies (as described in the user guide) and simply install Ranorex on the target machine. This way you will make sure there are installed all necessary libs and dependencies. Simple copying of libs (as described here) will not assure that there are installed all required dependencies on the target PC (VC runtimes, .Net, etc...). You don't have to use Studio on that PC. Just install required libs via installer instead of copying them.