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SandeMC committed Sep 3, 2024
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# Gillian's GTA IV Downgrade Utility
Semi-automatically downgrades your GTA IV installation to 1.0.8.0 or 1.0.7.0.

![image](https://github.com/gillian-guide/GTAIVDowngradeUtilityWPF/assets/70141395/9b71b6e0-4b71-4e07-9202-9afb440c1848)
![image](https://github.com/gillian-guide/GTAIVDowngradeUtilityWPF/assets/70141395/42ae1d80-7643-4326-9927-2b7ee51620ad)
## Singleplayer options
![image](https://github.com/user-attachments/assets/abf60cc3-0896-4fd1-aaad-1825b04a520f)
![image](https://github.com/user-attachments/assets/b8de14a8-f780-4a92-8481-20d5f89b2fb5)

## Multiplayer options
![image](https://github.com/user-attachments/assets/df47f057-bba5-4b6c-8e63-9864eaa4246b)
![image](https://github.com/user-attachments/assets/c8da88b2-369b-4fd0-818f-8009db093efb)


## Usage
- Launch the tool.
- Select your game folder, the one that includes `GTAIV.exe`.
- Toggle `Make GFWL-compatible` if you don't plan to play with GFWL.
- Toggle other things if your heart desires so. Default options are fine, usually.
- Press `Downgrade`.
- If you plan to downgrade for singleplayer usage, stay on the same page. Otherwise, press `Switch to multiplayer`.
- Toggle things if your heart desires so. Default options are fine, usually. Don't use advanced mode unless you really need to.
- Press `Downgrade` and read the pop-out prompts if any appear.
- Done!

## Features
- Downgrading the game to 1.0.8.0 or 1.0.7.0 - quickly or fully.
- Separated options for singleplayer and multiplayer-oriented downgrading.
- Installing the base essential mods.
- Backing up the files that could be potentially replaced.
- Cleaning up the game folder from potentially incompatible things (`*.asi`, `dsound.dll`) before downgrading.
- Automatically backing up the files that could be potentially replaced.
- Cleaning up the game folder from potentially incompatible files before downgrading (they can be found in the backup).
- Taking the selected toggles in account to automatically adjust logic (aka, the tool *shouldn't* let you do incompatible selections)

## Features that require downloading
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