Do you remember old VirtualDub? For 20 years ago it was the perfect tool for trimming AVI and sometimes MPEG4. In this video I do a clean install of VirtualDub2 64-bit in Windows 11. Then I also do the tricky MPEG4 trim. Actually it’s easier now since the MPEG4 support is built in. I recommend to install K-Lite_Codec_Pack_1760_Full before installing VirtualDub2.