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OpenIV#

OpenIV is a powerful tool for modifying, creating and extracting internal files. It can be used to create .img and .rpf files, which can be useful for modloading or mod creation. You may also, very rarely, come across mods packaged in .oiv - this tool allows you to install them as well.

Installation#

  1. Go to the official website (mirror if the official server is down).
  2. Press on Download now.
  3. Install OpenIVSetup.exe.

If the official website is down, an offline installer is available here.

Usage#

  1. Open OpenIV.
  2. In the Grand Theft Auto IV section, click on Windows.
  3. If requested, set the directory with the game files.

Be sure to back up your files before making any changes.

Creating archives#

This might be useful for you if you're making a mod/packing an existing mod for a modloader.

  1. Click File - Create Archive and choose the type of the archive you need.
  2. Choose the directory where you want to save the archive
  3. Add and modify the files as you wish - changes are saved automatically.

Extracting internal files#

  1. Locate the files of interest in the explorer.
  2. Double click to open an .img archive.
  3. Select the files you want to export.
  4. Right click - Extract.... Or right click on an empty space and click Extract all....
  5. Pick a folder where to extract the files. Done!

Editing existing archives (installing mods to game files)#

  1. Locate the files of interest in the explorer (mods usually give the structure to follow).
  2. Double click to open an .img archive.
  3. Press Edit mode on top.
  4. Modify the files as you wish - changes are saved automatically.