Hi, I'm trying to run two separate computers for FSX. The main PC is currently running FSX only, and the second(slave) will run Squakbox and vasFMC. I understand that FSUIPC4 and WideFS7 is required to run the external version of Squakbox and vasFMC on separate computers. I have purchased the keys for FSUIPC4 and WideFS7 and installed them on my main computer. I have also installed Squakbox and vasFMC on both computers. My problem arises when I try to install FSUIPC4 on the the slave PC which DOES NOT have FSX installed. Is it possible to install FSUIPC4 without FSX? My understanding is that WideFS7 is suppose to eliminate the need to install FSX on the slave PC. Did I misunderstand or am I missing a step in order to make this work?