Avidemux_2.7.7 VC++ 64bits 200727

[lenin38]

The program can't start because ADM_coreVideoCodec6.dll is missing from your computer.

[eumagga0x2a]

The problem is likely specific to your installation, I tested this build a few hours ago and it ran fine. Can it be that you had leftovers from a different Avidemux build in the same program directory?