Are you finding msgboxdll.dll just press download button to get your msgboxdll.dll file.
If some software in your windows OS wants msgboxdll.dll your operating system will ask for DLL file. When that DLL file is not available you will get this error.
If you have moved your file or changed the name of dll file you will get this error.
You will mostly see there errors when you dll file is missing:
If you need msgboxdll.dll Download it right now and install it into your system to fix the error as soon as possible. just Install msgboxdll.dll and fix your error.