I think there has been a misunderstanding in your answer. My question was whether Sardinia Photoreal could be installed BOTH in FSX and P3D. Now, when I install any part of Sardinia Photoreal in one simulator, let's say P3D, the installer says that has detected another installation (in FSX) and that must be canceled in order to proceed with the installation in P3D. In other words, it seems two installations on two simulators cannot coexist. Am I right?