

(Apologize in advance if you're a computer wiz and this is too basic for you). You will just need to right click the file, click on Properties, then hit the Detail tab and it will show you the version. Windows Explorer will look for every one installed.

You can check on your current version by opening your Windows Explorer, then clicking on your main hard drive symbol (C:\), then, in the upper right corner, type one of the files listed in the link I provided, like atl80.dll. You can only get this version by installing the 2005 with SP1 then running Windows Update. Security Update for Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package (KB2538242) keeps downloading from windows update every time I shut down my computer, this has happened for the last 18 times and all were successful. The last four digits of the Version is the version you should have installed (6195). Note all of the files that are included with the program. This is the version of 2005 you should have installed. These programs are normally installed when you install FSX but Acceleration was released before they could get the SP1 version incorporated with the program. Another possibility is that you do not have Microsoft Visual C++ Redistributables 20 with SP1. Right click Flight Simulator X and select Run as Administrator. Make sure you start up FSX as the Administrator. I'm assuming it's the FSX flight planner.
