Deployment of an application with .dll

[Podaz98]

Dear all,
I create a .dll with LabVIEW and I import it in my Qt project and verify that works.
Now I'm trying to deploy my app by "Qt 5.15.0 (MinGW 7.3.0 64-bit)" but an error appear .

How I can deploy these applications?

Many thanks to all.

[Podaz98]

Dear all,
I solved. It was our antivirus.
Many thanks to all.

[jsulm]

@Podaz98 What does the error message say?
Did you deploy the DLL together with your app?
Was the DLL build using MinGW or MSVC compiler?

[Podaz98]

@jsulm The message say "code execution cannot proceed because ChangeVal.dll was not found...."
How can I deploy .dll together with the app?
DLL was generated by LabVIEW. I'm using MinGW.

[foxoman]

The final app binary SimpleGUI.exe and the ChangeVal.dll should be in the same folder. Try to keep them both in the same folder and let us know.

[Podaz98]

@foxoman I already done it. At that point I see the following pop-up "Application Error 0xc000007b".

[Podaz98]

Dear all,
I solved. It was our antivirus.
Many thanks to all.