Since this is a community-sourced mod, follow these steps to ensure it works without crashing:
A updated rld.dll or pes2012.exe to prevent crashes on modern operating systems and high-refresh-rate monitors.
Start with a fresh installation of PES 2012 (v1.0).
Updated squads for the 2022/2023 season (e.g., Haaland at Man City, Lewandowski at Barcelona).
Because the official PESEdit team stopped updating years ago, these "2023 fixes" are typically designed to make the classic game compatible with Windows 10/11 and to update the player database to the 2022/2023 season. What’s Included in a 2023 Update Fix?
Always run pes2012.exe and the manager.exe (inside kitserver) as an Administrator to avoid save-data errors. A Quick Warning on Safety