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OIV Package Installer is a lightweight alternative to the OpenIV Package Installer. Built on the CodeWalker core, it offers a clean, reliable interface for installing OIV modification packages for Grand Theft Auto V Legacy and Enhanced.
Source Code: https://github.com/crxhvrd/CodeWalkerProjects
Features:
- Full Compatibility: Works with all existing OIV mods and packages.
- Uninstall mods via Manage Mods: Safely remove installed mods using the built-in manager.
- Clean Interface: A familiar UI inspired by OpenIV, providing a clear summary of package metadata.
- Game Support: Fully supports both GTA V Legacy and GTA V Enhanced versions.
- Smart Validation: Automatically validates your game version against the mod's requirements to prevent compatibility issues.
- Safe & Secure: Properly handles file placement logic, ensuring DLC packs and RPF modifications are correctly installed to your mods folder.
Requirements:
To ensure your mods folder works correctly, you must have the appropriate mods loader installed:
- GTA V Legacy: Requires OpenIV.asi
- GTA V Enhanced: Requires OpenRPF.asi
Important Note:
Please ensure the mod you are installing is compatible with your game version. Legacy mods cannot be installed on GTA V Enhanced, and Enhanced mods cannot be installed on GTA V Legacy. Installing incompatible mods will cause your game to crash.
How to Use:
1. Launch CodeWalker.OIVInstaller.exe.
2. Select your .oiv package file.
3. Select your GTA V game folder.
4. Click Install and wait for the process to complete.
5. Use the Manage Mods tab to uninstall mods if needed.
For Mod Creators:
The installer validates the <gameversion> tag in assembly.xml to ensure your mod is installed on the correct game version.
To enforce game version validation, add the <gameversion> tag to your assembly.xml file inside the <package> element.
Example for Enhanced Edition:
<gameversion>enhanced</gameversion>
Example for Legacy Edition:
<gameversion>legacy</gameversion>
Changelog:
1.0 - Initial release
1.1 - Added Manage Mods (now you can safely remove what you're installed), full OpenIV Format 2.2 Metadata support, Documentation and lots of fixes
1.2 - Added complete support for OpenIV Package Format 2.2 (Text, XML, PSO, Archive editing). Introduced Smart Uninstall to revert specific lines/nodes instead of restoring full files. Added full support for Add-on DLCs with clean uninstallation. Check "Docs" inside the app to see all supported features and todo list.
1.3 - Fixed .ytd file corruption after uninstalling mods via Manage Mods, added install/uninstall log files inside game folder, added better theme support & better stylized installation terminal output.
1.4 - Added CLI version of the app, supports automated .bat scripted mod installations & uninstallations. Batch examples can be found inside our Github source code project
All commands available in Docs -> User Guide.
1.5 - Improved CLI version of the app, advanced logic of install & uninstall mods via CLI with much more safety checks. Added Batch Examples into an archive so you can create your own CLI mod installer based on OIV Package Installer.
Source Code: https://github.com/crxhvrd/CodeWalkerProjects
Features:
- Full Compatibility: Works with all existing OIV mods and packages.
- Uninstall mods via Manage Mods: Safely remove installed mods using the built-in manager.
- Clean Interface: A familiar UI inspired by OpenIV, providing a clear summary of package metadata.
- Game Support: Fully supports both GTA V Legacy and GTA V Enhanced versions.
- Smart Validation: Automatically validates your game version against the mod's requirements to prevent compatibility issues.
- Safe & Secure: Properly handles file placement logic, ensuring DLC packs and RPF modifications are correctly installed to your mods folder.
Requirements:
To ensure your mods folder works correctly, you must have the appropriate mods loader installed:
- GTA V Legacy: Requires OpenIV.asi
- GTA V Enhanced: Requires OpenRPF.asi
Important Note:
Please ensure the mod you are installing is compatible with your game version. Legacy mods cannot be installed on GTA V Enhanced, and Enhanced mods cannot be installed on GTA V Legacy. Installing incompatible mods will cause your game to crash.
How to Use:
1. Launch CodeWalker.OIVInstaller.exe.
2. Select your .oiv package file.
3. Select your GTA V game folder.
4. Click Install and wait for the process to complete.
5. Use the Manage Mods tab to uninstall mods if needed.
For Mod Creators:
The installer validates the <gameversion> tag in assembly.xml to ensure your mod is installed on the correct game version.
To enforce game version validation, add the <gameversion> tag to your assembly.xml file inside the <package> element.
Example for Enhanced Edition:
<gameversion>enhanced</gameversion>
Example for Legacy Edition:
<gameversion>legacy</gameversion>
Changelog:
1.0 - Initial release
1.1 - Added Manage Mods (now you can safely remove what you're installed), full OpenIV Format 2.2 Metadata support, Documentation and lots of fixes
1.2 - Added complete support for OpenIV Package Format 2.2 (Text, XML, PSO, Archive editing). Introduced Smart Uninstall to revert specific lines/nodes instead of restoring full files. Added full support for Add-on DLCs with clean uninstallation. Check "Docs" inside the app to see all supported features and todo list.
1.3 - Fixed .ytd file corruption after uninstalling mods via Manage Mods, added install/uninstall log files inside game folder, added better theme support & better stylized installation terminal output.
1.4 - Added CLI version of the app, supports automated .bat scripted mod installations & uninstallations. Batch examples can be found inside our Github source code project
All commands available in Docs -> User Guide.
1.5 - Improved CLI version of the app, advanced logic of install & uninstall mods via CLI with much more safety checks. Added Batch Examples into an archive so you can create your own CLI mod installer based on OIV Package Installer.
Pertama dimuat naik: 19 Januari, 2026
Tarikh Kemaskini: 6 hari yang lalu
Last Downloaded: 9 minit yang lalu
58 Komen
OIV Package Installer is a lightweight alternative to the OpenIV Package Installer. Built on the CodeWalker core, it offers a clean, reliable interface for installing OIV modification packages for Grand Theft Auto V Legacy and Enhanced.
Source Code: https://github.com/crxhvrd/CodeWalkerProjects
Features:
- Full Compatibility: Works with all existing OIV mods and packages.
- Uninstall mods via Manage Mods: Safely remove installed mods using the built-in manager.
- Clean Interface: A familiar UI inspired by OpenIV, providing a clear summary of package metadata.
- Game Support: Fully supports both GTA V Legacy and GTA V Enhanced versions.
- Smart Validation: Automatically validates your game version against the mod's requirements to prevent compatibility issues.
- Safe & Secure: Properly handles file placement logic, ensuring DLC packs and RPF modifications are correctly installed to your mods folder.
Requirements:
To ensure your mods folder works correctly, you must have the appropriate mods loader installed:
- GTA V Legacy: Requires OpenIV.asi
- GTA V Enhanced: Requires OpenRPF.asi
Important Note:
Please ensure the mod you are installing is compatible with your game version. Legacy mods cannot be installed on GTA V Enhanced, and Enhanced mods cannot be installed on GTA V Legacy. Installing incompatible mods will cause your game to crash.
How to Use:
1. Launch CodeWalker.OIVInstaller.exe.
2. Select your .oiv package file.
3. Select your GTA V game folder.
4. Click Install and wait for the process to complete.
5. Use the Manage Mods tab to uninstall mods if needed.
For Mod Creators:
The installer validates the <gameversion> tag in assembly.xml to ensure your mod is installed on the correct game version.
To enforce game version validation, add the <gameversion> tag to your assembly.xml file inside the <package> element.
Example for Enhanced Edition:
<gameversion>enhanced</gameversion>
Example for Legacy Edition:
<gameversion>legacy</gameversion>
Changelog:
1.0 - Initial release
1.1 - Added Manage Mods (now you can safely remove what you're installed), full OpenIV Format 2.2 Metadata support, Documentation and lots of fixes
1.2 - Added complete support for OpenIV Package Format 2.2 (Text, XML, PSO, Archive editing). Introduced Smart Uninstall to revert specific lines/nodes instead of restoring full files. Added full support for Add-on DLCs with clean uninstallation. Check "Docs" inside the app to see all supported features and todo list.
1.3 - Fixed .ytd file corruption after uninstalling mods via Manage Mods, added install/uninstall log files inside game folder, added better theme support & better stylized installation terminal output.
1.4 - Added CLI version of the app, supports automated .bat scripted mod installations & uninstallations. Batch examples can be found inside our Github source code project
All commands available in Docs -> User Guide.
1.5 - Improved CLI version of the app, advanced logic of install & uninstall mods via CLI with much more safety checks. Added Batch Examples into an archive so you can create your own CLI mod installer based on OIV Package Installer.
Source Code: https://github.com/crxhvrd/CodeWalkerProjects
Features:
- Full Compatibility: Works with all existing OIV mods and packages.
- Uninstall mods via Manage Mods: Safely remove installed mods using the built-in manager.
- Clean Interface: A familiar UI inspired by OpenIV, providing a clear summary of package metadata.
- Game Support: Fully supports both GTA V Legacy and GTA V Enhanced versions.
- Smart Validation: Automatically validates your game version against the mod's requirements to prevent compatibility issues.
- Safe & Secure: Properly handles file placement logic, ensuring DLC packs and RPF modifications are correctly installed to your mods folder.
Requirements:
To ensure your mods folder works correctly, you must have the appropriate mods loader installed:
- GTA V Legacy: Requires OpenIV.asi
- GTA V Enhanced: Requires OpenRPF.asi
Important Note:
Please ensure the mod you are installing is compatible with your game version. Legacy mods cannot be installed on GTA V Enhanced, and Enhanced mods cannot be installed on GTA V Legacy. Installing incompatible mods will cause your game to crash.
How to Use:
1. Launch CodeWalker.OIVInstaller.exe.
2. Select your .oiv package file.
3. Select your GTA V game folder.
4. Click Install and wait for the process to complete.
5. Use the Manage Mods tab to uninstall mods if needed.
For Mod Creators:
The installer validates the <gameversion> tag in assembly.xml to ensure your mod is installed on the correct game version.
To enforce game version validation, add the <gameversion> tag to your assembly.xml file inside the <package> element.
Example for Enhanced Edition:
<gameversion>enhanced</gameversion>
Example for Legacy Edition:
<gameversion>legacy</gameversion>
Changelog:
1.0 - Initial release
1.1 - Added Manage Mods (now you can safely remove what you're installed), full OpenIV Format 2.2 Metadata support, Documentation and lots of fixes
1.2 - Added complete support for OpenIV Package Format 2.2 (Text, XML, PSO, Archive editing). Introduced Smart Uninstall to revert specific lines/nodes instead of restoring full files. Added full support for Add-on DLCs with clean uninstallation. Check "Docs" inside the app to see all supported features and todo list.
1.3 - Fixed .ytd file corruption after uninstalling mods via Manage Mods, added install/uninstall log files inside game folder, added better theme support & better stylized installation terminal output.
1.4 - Added CLI version of the app, supports automated .bat scripted mod installations & uninstallations. Batch examples can be found inside our Github source code project
All commands available in Docs -> User Guide.
1.5 - Improved CLI version of the app, advanced logic of install & uninstall mods via CLI with much more safety checks. Added Batch Examples into an archive so you can create your own CLI mod installer based on OIV Package Installer.
Pertama dimuat naik: 19 Januari, 2026
Tarikh Kemaskini: 6 hari yang lalu
Last Downloaded: 9 minit yang lalu




You're right about regular installers, but you're wrong about this tool. CodeWalker OIV Installer has a built-in 'Smart Uninstall' system, which does exactly what you thought was impossible: it tracks changes (including XML/text edits) and allows you to correctly roll them back through the mod manager. The program doesn't just blindly overwrite files; it manages the process, allowing you to revert everything.
@InTheSky before spitting out this, please read how the app handles reverting binary files, it's open sourced
and if you think something is wrong - feel free to contribute
@InTheSky im sorry but i think the only noob in here is you. When game gets updated - you have to replace update.rpf inside mods folder to original one, and then start installing .oiv mods into it, and only then you can safely remove mods with Manage Mods, just because how modding works in this game. x64.rpf archives usually never gets updated, but update.rpf and update2.rpf yes
If you dont update your mods folder after new patch, it will break no matter what
@InTheSky you tell me in a passive aggressive way that gta 5 users are dumb enough to not find gta5.exe in the folder. Also telling me about AAA studio is funny, since i develop one of the most technically advanced visual overhaul for GTA 5 (check my Patreon in profile), so yeah, i have much more experience in modding than you.
Again, if you think something is wrong with this app - feel free to contribute, but stop telling me how things are supposed to work
@InTheSky you dont know what im even talking about, grow up yourself if you think youre smarter than the others lmfao
Since your arguments are absolute crap, you neither never checked my Patreon to find out my mod is free (requires free sub) nor you checked OIV Package Installer source code to summarize how it truly works
@safari4831 ClosedIV is open source, I use it all the time, but its development is not complete enough, it cannot replace files independently, and it must rely on other modding tools, such as lml support. After 3570 it is not available, I communicated with Chiheb to ask him to help adapt the version after 3570, and now it can also be used with lml
Я почитал ваши комментарии, единственный вариант, это создать приложение читающие данне файлов игры в реальном времени, и заменяющие файлов новых версий поверх старых. Имхо спор закрыт :-)
А софт реально классный, лично я раньше мучался с Код Волкером, но нужно же иметь мозг чтобы понять при обновлении игры, она ещё может поддерживать моды старых версий или же проще самому переставить моды на новую версию. Автор Лучший. Респект тебе бро
This is awesome! Would it be possible to develop a CLI version (without the UI)? Or adding a command-line argument for silent installation would be a huge help for automation.
@Wolfenk i could implement this, yeah
Hello @safari4831. When installing a mods from Legacy to Enhanced that is more than 2GB your application, which is indeed awesome and very well-functioninbg, tells me however it is limited only to 2gb files. Can you please implement a way to bypass this limit in your next update? Thanks so much if possible.
@JoyLucien Hey man, sorry for the ping, but you have a way to fix Lenny's Mod Loader? I've spent a few hours trying to get it to work without RPH (if possible), could you help me with that? Its an important aspect for a movie I'm working on :/
If you (or anyone) can help please contact me on discord "motherflippin".
@Motherflippin' I use the last updated lml in the latest game and it works fine, I don't know why so many people say it doesn't work in the comment section
@safari4831 Thank you so much for implementing CLI support!
@JoyLucien Probably because they aren't using RagePluginHook alongside it, as instructed on the LSPDFR website
@Pizzahut No need for RagePluginHook, just the lml file works fine, and through communication with one of them, I found out that it might be caused by some script they installed to scan memory
Uninstalling OIV files was something I didnt think we'd have to wait so long for.