Yes, you can download add-ons for Microsoft Flight Simulator 2004.
No, you cannot unlock a Concorde on Flight Simulator X Acceleration. You can download addons though, I have a link for the Concorde below this question.
On the website of the flight simulator ( Microsoft ) , their is an free demo with 4 airplanes and a part of the world where you can fly in ( carraibes ) . If you want the full version, you need to pay for it, but if you like , you can add more planes into your demo by flight simulator addons ( just type in google "fsx addons")
Flight simulator X - all other are addons with more craft - you cannot if its a boxed version run the other addon packs with out the base version installed
depending on what you want . Down load, add to the relevant effect folder , remember that there are many effects folders for differing areas of the simulator to process. ALWAYS backup your original files before launching addons
== == It is not nessicerly an airport but is has the longest runway. Edwards Air Force Bace in California. Besides the AFB above, on the default game, the largest is Atlanta. With addons and scenery the largest is Los Angeles LAX.
Its not default airline in fsx. If you have down loaded 3rd party addons you will need to uninstall and go through the full install again. Check with the forums that the add on came from for install tips
Go to garrysmod.org and download various addons. These after download are usually extracted to the [Steam Install Folder]/steamapps/[Steam User Name]/garrysmod/garrysmod/addons folder. But these addons have installation instructions most of the time.
It depends on what you want to download, first get what you want to download off of garrysmod.org Maps go in the steam/steamapps/(username)/garrysmod/garrysmod/maps file addons go in the steam/steamapps/(username)/garrysmod/garrysmod/addons file
You do not have the correct addons needed for those props. That's why there is an error, get used to the names of addons, then download and install them from garrysmod.org
Go to Firefox.com, click Addons, and in the sidebar click Plugins.
Find a website to download from and click download. Then save it to your desktop. When the donload is complete, unzip the file and place the correct files in to the proper section of your FS9 folder. The aircraft file goes to the Aircraft section of the FS9 folder, gauges contents to Gauges, effects, to Effects, etc.
The easiest way to get addons and install them are with one of the two major addon clients, The Curse Client (requires a curse account) and WOWInterface's Minion. To manually install an addon, you need to download it to your computer, unzip it if it is zipped and then move it to your %wowfolder/interface/addons/ directory.