Resolved After adding images to a resource file DLL is not generated

[alikim]

I have a winForms project where I want to use a dozen different images for backgrounds (JPEGs and PNGs with and w/o transparency), average size a few hundred Kb.
The project always builds successfully, no errors, but sometimes the DLL file is not generated.
I tried to set output to "Detailed" and "Debug" but I couldn't see errors or warnings.
Certain combinations of images put into .resx file work, certain don't, I can't see any pattern to it.

How can I investigate this issue?

 

[Skydiver]

but sometimes the DLL file is not generated.

Is the DLL currently in use or locked?

Is your anti-virus automatically quarantining/deleting the DLL?

In general, MSBuild.exe and Visual Studio are very good about giving errors when file generation works?

 

[alikim]

You're right, I found a lot of DLLs in Anti-virus quarantine, thank you!
Do you know why this is happening?

 

[Skydiver]

Your AV found a pattern of bits in your DLL that matches a pattern of bits found in known malware. Those bits in a .JPEG or .PNG file is likely harmless, but the same pattern of bits in a DLL is potential malware.