Since Pkg2zip.exe has no graphical interface, you must use Command Prompt (CMD) or PowerShell.
The tool is especially popular in the console modding/homebrew scene, enabling users to inspect, repack, or run decrypted game assets on compatible hardware or emulators. Pkg2zip.exe
: Decrypts and unpacks main applications, DLC, patches, and PSM (PlayStation Mobile) files. Since Pkg2zip
pkg2zip.exe "game.pkg" "zRIF_string_here" pkg2zip
Pkg2zip.exe is a command-line utility designed to decrypt and extract contents from Sony PlayStation package files. These PKG files are commonly used for distributing games, updates, DLC, and system software on platforms such as the PS Vita , PS TV , and PS4 .
The filename itself is a concatenation of (the file extension) + 2 (to/too) + zip (the output format). The .exe indicates it is a compiled program for Windows environments.