How do you install Fallout 3 with PowerISO?

Answer 1

Firstly you need to mount the .iso image. To do this right click on the file and either 'open with' or 'mount' with poweriso. If those options aren't on the right click menu, open up power iso and browse for the .iso image file. After it has been mounted you treat it like a normal disk. So go onto my computer and find the fallout 3 'disc' and inside it should be the setup.exe, run it, follow the instructions and enjoy!

Depedning on how you obtained the .iso image you may have to have the .iso image mounted when you run the game as it may have a disc check system. Hope this helped!

Answer 2

You either burn the ISO to a disk or you need a virtual drive to mount it to. You can get one of a few programs that will place a virtual drive on your PC, PowerISO, UltraISO, Alcohol 120%, Nero, Daemon Tools, etc. Any of which can read, extract and mount ISO files among others.

Most DLC's are only the files themselves and don't really require installation. All you need do is use WinRAR (for example), which can read ISO files like archives and extract the ESP and BSA files to your Fallout 3 data folder (ESP's define the content and BSA's hold the game data). Once that is done, go to the "Data Files" of your game launcher and select the DLC's that show up on the list.

I would highly recommend you use Fallout Mod Manager (FOMM) to make sure each data file is loaded in their proper order to prevent crashing, that is if you intend to drop many DLC's into the data folder in this manner, but installing them via the ISO or a disk insures the content is loaded in the proper order.

UPDATE: The Nexus forums now have a universal mod manager (called simply the Nexus Mod Manager) to suit Fallout 3, Fallout New Vegas, TES IV: Oblivion and TES V: Skyrim. It is very stable, organises the mods in their most logical order and can install mods downloaded directly by the application. It's free along with mods for any of these games if you register with them. Recommended for people who want to expand their gaming experience.