# OpenCV based Dll

**URL:** https://forum.opencv.org/t/opencv-based-dll/13695
**Category:** C++
**Created:** [June 28, 2023, 2:20pm UTC](https://forum.opencv.org/t/opencv-based-dll/13695 "2023-06-28T14:20:30Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Assaf\_Shemesh](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.opencv.org/assaf_shemesh/32/8184_2.png) [@Assaf\_Shemesh](https://forum.opencv.org/u/Assaf_Shemesh)
#### Post date: [June 28, 2023, 2:20pm UTC](https://forum.opencv.org/t/opencv-based-dll/13695/1 "2023-06-28T14:20:30Z")

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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!

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### Author: ![laurent.berger](https://avatars.discourse-cdn.com/v4/letter/l/ec9cab/32.png) [@laurent.berger](https://forum.opencv.org/u/laurent.berger)
#### Post date: [June 28, 2023, 2:36pm UTC](https://forum.opencv.org/t/opencv-based-dll/13695/2 "2023-06-28T14:36:42Z")

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opencv\_videoio\_ffmpeg4xx\_64  
and  
vc redistribualbe [Derniers téléchargements Visual C++ Redistributable pris en charge | Microsoft Learn](https://learn.microsoft.com/fr-fr/cpp/windows/latest-supported-vc-redist?view=msvc-170)