FalloutNV:FNV BSA Decompressor

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FNV BSA Decompressor

by Zilav




Mod Group:




CR Patch:


LW Patch:


PP Patch:


ENB Option:


Guide/Version-Specific Mod Recommendations

Type a version string using the format indicated by the placeholder text below. Copy/paste the intended guide version from the "Existing Guides" table above (if it exists) into the field below. For unofficial user-created guides, use the format indicated by the placeholder text. Editors: Please DO NOT use wiki headings inside of custom Recommendations and also avoid using templates if at all possible! Template calls add to the max threshold, and headings mess up the guide ToC.


  1. Close Mod Organizer if it is running. The game's assets should not be in use, otherwise the process might fail.
  2. Run FNV BSA Decompressor.exe
  3. Under the Fallout: New Vegas header, click [Browse] and point the tool to FNV's root folder (i.e. ..\Steam\steamapps\common\Fallout New Vegas sub-folder for Steam users).
  4. Click Decompress and wait for the process to finish.
  5. Read carefully the information that appears under the Decompression has completed! header and make the necessary checks (as instructed), then close the tool.
  6. Open Mod Organizer and click the [Tools] button at the top, then select INI Editor.
  7. Navigate to the fallout.ini tab and change the line under [Archive] (should be at the top of the file) and then click Save:

[Archive] SArchiveList=Fallout - Invalidation.bsa, Fallout - Textures.bsa, Fallout - Textures2.bsa, Fallout - Meshes.bsa, Fallout - Meshes2.bsa, Fallout - Voices1.bsa, Fallout - Sound.bsa, Fallout - Misc.bsa

The tool does not support other games in the Bethesda catalogue and can be deleted once the installation of the guide is proven to be successful (the test run is further in the guide).