C:\Program Files\Rockstar Games\Grand Theft Auto Vice City (or your custom Steam/Epic Games installation directory).
The file is typically bundled with the GTA Vice City Ultimate Trainer v2 or similar mod packages.
If the game crashes at startup, it is recommended to delete the modded files or the gta_vc.set configuration file to reset the game to its default state. Distinction from Official Data Files keys.dat gta vc
Ensure keys.dat , GTA Vice ultimate Trainer.exe , and any associated .g3l files are all together in the main game folder.
Do not confuse it with gta_vc.set , which stores official game settings and is located in the My Documents \ GTA Vice City User Files folder. Troubleshooting "keys.dat Not Found" Errors Distinction from Official Data Files Ensure keys
Sometimes Windows prevents trainers from reading the .dat file due to permission issues.
If you are seeing errors related to this file, follow these steps: If you are seeing errors related to this
It is important to distinguish keys.dat from official engine files used by Vice City:
Some users also report that a missing keys.dat can cause the base game to hang on certain loading screens, such as "Vice Beach, outside Ken's office," particularly if the game was previously modded or is being launched through the trainer's executable. Common File Locations