OpenCV based Dll

Hi, I created a Dll in VC++ using openCV, to be used in LabVIEW 64bit. On my work computer, where I’ve install openCV, and Visual Studio, it works, but on the target computer it doesn’t work, even though I’ve copied opencv_world470.dll opencv_world470d.dll into the target directory, and also to system32. Do I have another dependency missing?
Thanks!

opencv_videoio_ffmpeg4xx_64
and
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