I have a problem with the WoAI installer (the target window is greyed out & there is no button to use) so I thought I'd have a go at installing airlines manually. I can use the installer to get a folder (Air Asia [Thailand] for example0 with an aircraft & scenery folders. I'm happy to install the flight plan but am not sure what to do if/when asked if I want to overwrite when I get to the aircraft folder. I'd appreciate some help as I don't want to overwrite something I shouldn't. Thanks.
I use the installer as admin by the way & getting new installers doesn't help.