Launch Yuri's Revenge . Look at the bottom right corner of the main menu. It must say 1.001 . If it says 1.000, you need to patch the game.

The trainer works with the game.exe or gamemd.exe of a specific size (approx 1,001,054 bytes). The safest way is to install the "CnCNet" online client, which uses the 1.001 standard, and extract the EXE from there.

Windows 10/11 blocks old memory writers. Right-click the trainer .exe > Properties > Compatibility > Check "Run this program as an administrator" > Set compatibility to Windows XP (Service Pack 3).