Ranorex can as well run as a 32 bit or 64 bit process, both versions are included in the setup. In general, one should use the Ranorex version that matches the bit architecture of the automated application. I.e. if you automate a 32 bit application, use “Ranorex Spy (x86)” and “Ranorex Recorder (x86)”, otherwise use “Ranorex Spy” and “Ranorex Recorder” (64 bit versions).
When you compile your own Ranorex executables, be sure to specify the right target architecture in your project settings. In Ranorex Studio this setting is on the “Compiling” tab in the project properties. .NET applications are by default started as 64 bit processes on 64 bit operating systems unless the target CPU is explicitly set to the x86 architecture. Consequently, set the “Target CPU” property to “Any processor” for automating 64 bit applications and to “32-bit Intel-compatible processor” for 32 bit applications.