# \#dll **URL:** https://forums.unrealengine.com/tag/dll/447.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [Failed to load 'aqProf.dll' , 'VtuneApi.dll' , 'VtuneApi32e.dll'](https://forums.unrealengine.com/t/failed-to-load-aqprof-dll-vtuneapi-dll-vtuneapi32e-dll/2542455)
**Author:** [@NotPasi\_TV](https://forums.unrealengine.com/u/NotPasi_TV)\ **Replies:** 6\ **Last updated:** [June 29, 2026, 2:50pm UTC](https://forums.unrealengine.com/t/failed-to-load-aqprof-dll-vtuneapi-dll-vtuneapi32e-dll/2542455 "2026-06-29T14:50:20Z")
My project is displaying the following errors, for which I cannot find a solution. When I open my project, the following error messages appear: LogWindows: Failed to load ‘aqProf.dll’ (GetLastError=126) LogWindows: Fi… --- ## [Copy 3rd Party DLLs to Binaries folder does not work for Engine Plugin - How to solve?](https://forums.unrealengine.com/t/copy-3rd-party-dlls-to-binaries-folder-does-not-work-for-engine-plugin-how-to-solve/738255)
**Author:** [@Hausfrau8787](https://forums.unrealengine.com/u/Hausfrau8787)\ **Replies:** 7\ **Last updated:** [June 1, 2026, 2:51am UTC](https://forums.unrealengine.com/t/copy-3rd-party-dlls-to-binaries-folder-does-not-work-for-engine-plugin-how-to-solve/738255 "2026-06-01T02:51:58Z")
Hey everyone! I’m struggling with a very strange problem and I already tried out everything that I could imagine but still the problem persists and I hope that you guys can help me. I built a code plugin that uses some… --- ## [5.4 and 5.5 not opening D3D Removed error](https://forums.unrealengine.com/t/5-4-and-5-5-not-opening-d3d-removed-error/2064962)
**Author:** [@faxoli1](https://forums.unrealengine.com/u/faxoli1)\ **Replies:** 3\ **Last updated:** [October 14, 2024, 8:33pm UTC](https://forums.unrealengine.com/t/5-4-and-5-5-not-opening-d3d-removed-error/2064962 "2024-10-14T20:33:18Z")
Summary I am using laptop with 4060 and editor has been working fine for months but on 10/10 after windows update possibly the unreal engine wont open. Show graphics card removed error . On windows 11 this is log file … --- ## [Delay Load DLLs causing breakpoint](https://forums.unrealengine.com/t/delay-load-dlls-causing-breakpoint/353449)
**Author:** [@AgentMilkshake1](https://forums.unrealengine.com/u/AgentMilkshake1)\ **Replies:** 5\ **Last updated:** [July 25, 2024, 11:29am UTC](https://forums.unrealengine.com/t/delay-load-dlls-causing-breakpoint/353449 "2024-07-25T11:29:21Z")
Hi AgentMilkshake1, Adding the DLL to PublicDelayLoadDlls is only part of the solution - the engine needs to know where the DLL lives, so it can find it once it is required. This can be achieved in a few ways. The fir… --- ## [How to build the UE4 runtime as a library（lib or dll），in order to embed it into our project。](https://forums.unrealengine.com/t/how-to-build-the-ue4-runtime-as-a-library-lib-or-dll-in-order-to-embed-it-into-our-project/487736)
**Author:** [@anonymous\_user\_40d99fe4](https://forums.unrealengine.com/u/anonymous_user_40d99fe4)\ **Replies:** 1\ **Last updated:** [February 12, 2024, 8:59am UTC](https://forums.unrealengine.com/t/how-to-build-the-ue4-runtime-as-a-library-lib-or-dll-in-order-to-embed-it-into-our-project/487736 "2024-02-12T08:59:49Z")
in unreal engine 4.27 preview ，there is a new feature that we can build the UE4 runtime as a library and interact with it through a minimal，build-in API. This API starts UE4,optionally accepting a command-line and windo… --- ## [Adding C++ DLL to Unreal Engine](https://forums.unrealengine.com/t/adding-c-dll-to-unreal-engine/1527550)
**Author:** [@Jopanalegs](https://forums.unrealengine.com/u/Jopanalegs)\ **Replies:** 0\ **Last updated:** [December 15, 2023, 2:05pm UTC](https://forums.unrealengine.com/t/adding-c-dll-to-unreal-engine/1527550 "2023-12-15T14:05:38Z")
I am developing plugin, that uses my third-party dll. When I add C written dll, everything is okay, I had experience adding cJSON, libcurl - they written in C. When I tried using C++ DLL, like I created custom dll for x6… --- ## [Error while loading Third party DLLs dependencies ](https://forums.unrealengine.com/t/error-while-loading-third-party-dlls-dependencies/1233632)
**Author:** [@cmenoux](https://forums.unrealengine.com/u/cmenoux)\ **Replies:** 1\ **Last updated:** [July 21, 2023, 8:14am UTC](https://forums.unrealengine.com/t/error-while-loading-third-party-dlls-dependencies/1233632 "2023-07-21T08:14:12Z")
Hi guys, I’m trying for weeks to integrate a third-party library (GDAL) into a plugin. This library depends from many other libraries (like PROJ for exemple). Her is my code structure : Binaries/ThirdParty/Win64 co… --- ## [Why do I get error "inconsistent dll linkage" ?](https://forums.unrealengine.com/t/why-do-i-get-error-inconsistent-dll-linkage/433239)
**Author:** [@BestWarrior](https://forums.unrealengine.com/u/BestWarrior)\ **Replies:** 11\ **Last updated:** [April 20, 2023, 8:52pm UTC](https://forums.unrealengine.com/t/why-do-i-get-error-inconsistent-dll-linkage/433239 "2023-04-20T20:52:09Z")
Hi, I want to call a funciton from a plugin but I get this error “inconsistent dll linkage”. This is the header file #pragma once #include "CoreMinimal.h" #include "../../Plugins/FliteTTSPlugin/Source/FliteTTSPlugin/P… --- ## [Efficient conversion from video Media source to OpenCV::mat](https://forums.unrealengine.com/t/efficient-conversion-from-video-media-source-to-opencv-mat/484238)
**Author:** [@sharpshot124](https://forums.unrealengine.com/u/sharpshot124)\ **Replies:** 1\ **Last updated:** [October 3, 2022, 3:06pm UTC](https://forums.unrealengine.com/t/efficient-conversion-from-video-media-source-to-opencv-mat/484238 "2022-10-03T15:06:28Z")
Hello, myself and a few others are developing a developer toolset to be used for video and recording. We are using OpenCV to accomplish a variety of tasks. The issue which is giving us the most trouble is the sharing of … --- ## [Error loading DLL (GetLastError=193)](https://forums.unrealengine.com/t/error-loading-dll-getlasterror-193/447337)
**Author:** [@DebashishPatra](https://forums.unrealengine.com/u/DebashishPatra)\ **Replies:** 2\ **Last updated:** [July 6, 2022, 1:55pm UTC](https://forums.unrealengine.com/t/error-loading-dll-getlasterror-193/447337 "2022-07-06T13:55:01Z")
I am following \[DLL linking tutorial\]\[1\]. As of VS 2017, i can’t get my DLL to work with unreal. I get the following error. I have debugged the UE4 part of code and there is no chance of any mistakes there. As you ca… --- ## ["\[ProjectName\]-4603.dll is either not designed to run on Windows or contains an error.](https://forums.unrealengine.com/t/projectname-4603-dll-is-either-not-designed-to-run-on-windows-or-contains-an-error/437380)
**Author:** [@anonymous\_user\_193ab718](https://forums.unrealengine.com/u/anonymous_user_193ab718)\ **Replies:** 2\ **Last updated:** [October 16, 2021, 7:04pm UTC](https://forums.unrealengine.com/t/projectname-4603-dll-is-either-not-designed-to-run-on-windows-or-contains-an-error/437380 "2021-10-16T19:04:19Z")
Hi, I started working on a project last night and when I tried to open it this morning I got a dll error stating “\[ProjectPath\]/\[ProjectName\]-4603.dll is either not designed to run on Windows or it contains an error. Tr… --- ## [How can I package runtime dependencies from an engine plugin?](https://forums.unrealengine.com/t/how-can-i-package-runtime-dependencies-from-an-engine-plugin/433361)
**Author:** [@anonymous\_user\_d91a17a0](https://forums.unrealengine.com/u/anonymous_user_d91a17a0)\ **Replies:** 2\ **Last updated:** [September 24, 2021, 4:52pm UTC](https://forums.unrealengine.com/t/how-can-i-package-runtime-dependencies-from-an-engine-plugin/433361 "2021-09-24T16:52:00Z")
I've created a runtime engine plugin that links against some third party dlls. I've included the third party dlls inside Engine\\Plugins\\\<"pluginname"\>\\Binaries\\\\ so they are picked up and loaded automatically (I can't … --- ## [Unresolved external symbol for custom third party plugin (integrating Vosk)](https://forums.unrealengine.com/t/unresolved-external-symbol-for-custom-third-party-plugin-integrating-vosk/487496)
**Author:** [@AwesomelySauce](https://forums.unrealengine.com/u/AwesomelySauce)\ **Replies:** 1\ **Last updated:** [August 16, 2021, 4:48pm UTC](https://forums.unrealengine.com/t/unresolved-external-symbol-for-custom-third-party-plugin-integrating-vosk/487496 "2021-08-16T16:48:18Z")
I’m currently trying to integrate Vosk - Offline Speech Recognition - into UE4. They only provide 4 dll files from their website: libgcc\_s\_seh-1.dll libstdc++-6.dll libwinpthread.dll vosk.dll Following online sources I… --- ## [Windows: How to alter PATH of UE-Editor based on project settings](https://forums.unrealengine.com/t/windows-how-to-alter-path-of-ue-editor-based-on-project-settings/483538)
**Author:** [@wonko\_rt](https://forums.unrealengine.com/u/wonko_rt)\ **Replies:** 0\ **Last updated:** [May 17, 2021, 10:08pm UTC](https://forums.unrealengine.com/t/windows-how-to-alter-path-of-ue-editor-based-on-project-settings/483538 "2021-05-17T22:08:07Z")
I’m developing on windows and have some really big third party libraries i’m working with which contain hundreds of DLLs and am looking for a way to avoid copying them locally to the project or any other UE default searc… --- ## [Cross compiling plugin for Linux](https://forums.unrealengine.com/t/cross-compiling-plugin-for-linux/481746)
**Author:** [@Habdoula](https://forums.unrealengine.com/u/Habdoula)\ **Replies:** 0\ **Last updated:** [April 12, 2021, 12:19am UTC](https://forums.unrealengine.com/t/cross-compiling-plugin-for-linux/481746 "2021-04-12T00:19:30Z")
hi I am trying to port a plugin from Win64 to Linux. The plugin uses dll binaries from an SDK on Win64. There are so binaries available as well for Linux. I am trying to figure out how to setup my build.cs or other fil… --- ## [Failed to load a module that has link with third party dll.](https://forums.unrealengine.com/t/failed-to-load-a-module-that-has-link-with-third-party-dll/475745)
**Author:** [@DesignerJoon](https://forums.unrealengine.com/u/DesignerJoon)\ **Replies:** 6\ **Last updated:** [March 31, 2021, 1:34am UTC](https://forums.unrealengine.com/t/failed-to-load-a-module-that-has-link-with-third-party-dll/475745 "2021-03-31T01:34:48Z")
Hi, I’m trying to make a runtime skp importer with \[this SketchUp C API Document\]\[1\] and the SDK files. I created a plugin using third-party library template and 1. Copied .dll and .lib into the directory where exampl… --- ## [Specify dll location using plugin in cooked project?](https://forums.unrealengine.com/t/specify-dll-location-using-plugin-in-cooked-project/436693)
**Author:** [@anonymous\_user\_e1d5ba97](https://forums.unrealengine.com/u/anonymous_user_e1d5ba97)\ **Replies:** 5\ **Last updated:** [March 2, 2021, 7:58pm UTC](https://forums.unrealengine.com/t/specify-dll-location-using-plugin-in-cooked-project/436693 "2021-03-02T19:58:09Z")
I have made a plugin to interact with some exotic hardware that we use internally. This plugin depends on a third party DLL file. Lets call this file my\_exotic\_hardware.dll. I have successfully made the plugin work in bo… --- ## [Linking .lib file, but opening file looks for .dll?](https://forums.unrealengine.com/t/linking-lib-file-but-opening-file-looks-for-dll/431925)
**Author:** [@anonymous\_user\_b95dd82a](https://forums.unrealengine.com/u/anonymous_user_b95dd82a)\ **Replies:** 3\ **Last updated:** [September 25, 2020, 9:23am UTC](https://forums.unrealengine.com/t/linking-lib-file-but-opening-file-looks-for-dll/431925 "2020-09-25T09:23:34Z")
I’m trying to build a plugin called ‘Kiface’ using The Kinect 2.0 C++ SDK. I’ve added a dependancy in my plugin’s build.cs file like so: using UnrealBuildTool; using System.IO; public class kiface : ModuleRules { publ… --- ## [Loading Libraries(.dll) While Launching Unreal Engine](https://forums.unrealengine.com/t/loading-libraries-dll-while-launching-unreal-engine/471906)
**Author:** [@CtnDev](https://forums.unrealengine.com/u/CtnDev)\ **Replies:** 2\ **Last updated:** [September 25, 2020, 9:03am UTC](https://forums.unrealengine.com/t/loading-libraries-dll-while-launching-unreal-engine/471906 "2020-09-25T09:03:36Z")
Hi Dear Community, Currently I have my own third party library plugin. I have managed to load dll’s from place on .cpp, It runs perfectly when I load my game. my dll’s are also under third party folder in plugin,… --- ## [PySide2 dll error with python plugin](https://forums.unrealengine.com/t/pyside2-dll-error-with-python-plugin/465805)
**Author:** [@SVAD](https://forums.unrealengine.com/u/SVAD)\ **Replies:** 1\ **Last updated:** [September 21, 2020, 6:54pm UTC](https://forums.unrealengine.com/t/pyside2-dll-error-with-python-plugin/465805 "2020-09-21T18:54:04Z")
I can’t get PySide2 to work with the official python plugin, and I there are a number of reasons I’d rather not build the engine from source. The bundled python is compiled using MSC v.1500 2.7.14 (v2.7.14:84471935ed, … --- ## [Is anyone else having issues in the new 4.25?](https://forums.unrealengine.com/t/is-anyone-else-having-issues-in-the-new-4-25/465311)
**Author:** [@ZlotyGames](https://forums.unrealengine.com/u/ZlotyGames)\ **Replies:** 4\ **Last updated:** [May 29, 2020, 6:17am UTC](https://forums.unrealengine.com/t/is-anyone-else-having-issues-in-the-new-4-25/465311 "2020-05-29T06:17:35Z")
I decided to update my project from 4.19 to the new 4.25 due to the new features. The conversion went fine but it makes me think twice because of the ammount of issues i’m having while using the new version First I’m ha… --- ## [opencv with tbb](https://forums.unrealengine.com/t/opencv-with-tbb/464481)
**Author:** [@Peleg.Lila](https://forums.unrealengine.com/u/Peleg.Lila)\ **Replies:** 0\ **Last updated:** [April 30, 2020, 3:13pm UTC](https://forums.unrealengine.com/t/opencv-with-tbb/464481 "2020-04-30T15:13:28Z")
Hi, I’m linking my game with opencv dlls, which I built with tbb, meaning that they depend on having the tbb.dll corresponding to the tbb.lib that I linked against. I used the latest release of tbb. I noticed that my … --- ## [AIPerception error](https://forums.unrealengine.com/t/aiperception-error/462053)
**Author:** [@Remboo18](https://forums.unrealengine.com/u/Remboo18)\ **Replies:** 3\ **Last updated:** [March 5, 2020, 8:29pm UTC](https://forums.unrealengine.com/t/aiperception-error/462053 "2020-03-05T20:29:04Z")
When I try to create an AIPerceptionComponent \[aiPerception = CreateDefaultSubobject (TEXT (“AiPerception”));\] I receive the error \[enemy.cpp.obj: error LNK2019: unresolved external symbol "\_\_declspec (dllimport) privat… --- ## [How does Unreal packs its first-party dlls with the game .exe?](https://forums.unrealengine.com/t/how-does-unreal-packs-its-first-party-dlls-with-the-game-exe/451369)
**Author:** [@Hitsaru](https://forums.unrealengine.com/u/Hitsaru)\ **Replies:** 1\ **Last updated:** [November 26, 2019, 1:51am UTC](https://forums.unrealengine.com/t/how-does-unreal-packs-its-first-party-dlls-with-the-game-exe/451369 "2019-11-26T01:51:05Z")
When you build Unreal’s source code it generates lots off dlls, when you use the built engine to deploy a game the result is a game with a single executable. How does Unreal packs its first-party dlls into a single .exe? … --- ## [Launcher error 0xc000007b](https://forums.unrealengine.com/t/launcher-error-0xc000007b/419657)
**Author:** [@fantastici04](https://forums.unrealengine.com/u/fantastici04)\ **Replies:** 1\ **Last updated:** [October 15, 2019, 9:11pm UTC](https://forums.unrealengine.com/t/launcher-error-0xc000007b/419657 "2019-10-15T21:11:55Z")
Good evening everyone !!! I just downloaded the epic games launcher and gives me the following error: “The application could not be started correctly (0xc000007b). Click OK to close the application.” I’ve been able to up… --- ## [UE4 editor won't open. 4.23](https://forums.unrealengine.com/t/ue4-editor-wont-open-4-23/456575)
**Author:** [@anonymous\_user\_966318eb](https://forums.unrealengine.com/u/anonymous_user_966318eb)\ **Replies:** 1\ **Last updated:** [October 9, 2019, 2:40pm UTC](https://forums.unrealengine.com/t/ue4-editor-wont-open-4-23/456575 "2019-10-09T14:40:21Z")
Hello, My UE4 editor won’t open with the error : 0xc000007b. I run Dependency Walker and the log is attached. It says that there are some files missing but they can be found in: C:\\Program Files\\Epic Games\\UE\_4.23\\Eng… --- ## [Is it possible to use .net assemblies in ue4 like this?](https://forums.unrealengine.com/t/is-it-possible-to-use-net-assemblies-in-ue4-like-this/455759)
**Author:** [@JackJack321](https://forums.unrealengine.com/u/JackJack321)\ **Replies:** 2\ **Last updated:** [October 8, 2019, 3:40pm UTC](https://forums.unrealengine.com/t/is-it-possible-to-use-net-assemblies-in-ue4-like-this/455759 "2019-10-08T15:40:10Z")
I’m linking to the page that shows what I want to do: basically I have a few .net assemblies that I want to be able to use types and functions from in a cpp actor in ue4. How would I enable the /clr flag in ue4? I’ve… --- ## [Dsetup.dll missing during installation](https://forums.unrealengine.com/t/dsetup-dll-missing-during-installation/456530)
**Author:** [@anonymous\_user\_b7d99689](https://forums.unrealengine.com/u/anonymous_user_b7d99689)\ **Replies:** 1\ **Last updated:** [October 8, 2019, 12:40pm UTC](https://forums.unrealengine.com/t/dsetup-dll-missing-during-installation/456530 "2019-10-08T12:40:41Z")
I’m trying to install the Epic Games Installer to later install Unreal Engine 4 on Windows 10 on my data drive (D:/) because my main one (C:/) is nearly full (I don’t know if it is of any importance). When I run the inst… --- ## [dllの読み込みについて](https://forums.unrealengine.com/t/dll/455618)
**Author:** [@Answers.Archive](https://forums.unrealengine.com/u/Answers.Archive)\ **Replies:** 1\ **Last updated:** [September 19, 2019, 7:44am UTC](https://forums.unrealengine.com/t/dll/455618 "2019-09-19T07:44:20Z")
お世話になります。 UE4でdllを読み込みたいのですが すべてのプログラミング言語でDLLを作成しても、UE4で読み込めますか？ C++で作成したDLLしか読み込めない、といったことはないでしょうか？ 現在、C#で作成するDLLを読み込もうと思っていますが問題ありませんか？ 以上、よろしくお願いします。 --- ## [Can you link Unreal Engine with libraries built with RTTI on Linux?](https://forums.unrealengine.com/t/can-you-link-unreal-engine-with-libraries-built-with-rtti-on-linux/442791)
**Author:** [@mister-liss](https://forums.unrealengine.com/u/mister-liss)\ **Replies:** 4\ **Last updated:** [August 19, 2019, 4:05am UTC](https://forums.unrealengine.com/t/can-you-link-unreal-engine-with-libraries-built-with-rtti-on-linux/442791 "2019-08-19T04:05:07Z")
Unreal Engine has a plugin for integrating with OpenCV. Currently that plugin works on Windows. I’m trying to modify this plugin to work on Linux. I’ve worked through many issues but I have one I can’t resolve. When I t… [Next page](https://forums.unrealengine.com/tag/dll/447.md?match_all_tags=true&page=1&tags%5B%5D=dll)