These programs might use shared code files called dynamic link libraries, or DLL files, that have a .dll extension, but you generally don't run or access DLL files directly.

A DLL file in Windows carries all the code that one program can use to function correctly. Like any other software, the functions in the DLL file needs to be compatible with Windows if they are ...

Fix Bad Image, D3D11.dll is either not designed to run on Windows or it contains an error, Error status 0xc0000020 on Windows 11/10.

Solution 4: Delete Temporary Files There are instances when the temporary files that are stored in the App Data folder of your computer is preventing RunDLL to run properly at startup.