I just installed VISTA on a HD dedicated to only VISTA. Running under VISTA I can see all the hard drives on my system (C D E G) and can access all files on each drive. FS9 runs fine under VISTA from the same drive that FSX is on. Win/XP is installed on Drive CFSX is installed on Drive E and has been and is still running fine under Win/XPWhen I try to start FSX from drive E while running under VISTA I see the following message:The application has failed to start because the side-by-side configuration is incorrect. See the application event log for details.Does anyone have a clue what that message is trying to tell me?Where do I find the application event file in VISTA?Do I need to make some change to the FSX cfg file to run under VISTA?

Welcome to the forum(s). Does this help? http://forums.avsim.net/dcboard.php?az=sho...23835&mode=fullDoug

It could be a problem in the simconnect side by side.The file is located in c:windowswinsxslook for a folder that begins withx86_microsoft.flightsimulator.simconnectInside it must have a simconnect.dllAlso check the Manifest directory you should see 2 files that also begin like x86_microsoft.flightsimulator.simconnectIf there is any missing try a FSX repair if none is missing I can only think about a FSX reinstall or a problem related to Visual studio.Jos

Sounds like a good thing to try - but the problem is I am still trying to get VISTA to connect via firewire to the PC that has the internet connection.When I installed VISTA it was able to use the firewire connection to upload updates off the WEB. When I boot to XP I can connect via firewire to the PC that has a internet connection. BUT - when I boot to VISTA it tells me the cable is unplugged. I'll have to fix that problem before I can test FSX/VISTA

TacomaSailor,See my reply on the CFC forum.George