State the advantages of ActiveX Dll over Active Exe?

ACTIVEX DLL: An in-process part, or ActiveX DLL, keeps running in another application’s procedure. Applications or other in-process segments utilize In-process parts. This enables you to wrap up basic functionality (like an ActiveX Exe).

ACTIVEX EXE:  An out-of-process segment, or ActiveX EXE, keeps running in its specified address space. The customer is usually an application running in another process. The code running in an ActiveX Exe is running.