Have you ever wanted to register dll files from Explorer? DLL files that export the
(as COM dll files do) can easily be controlled from the Explorer while selected. You can register/unregister it as seen in the image above. To enable this feature add subkeys to the registy under HKEY_CLASSES_ROOT\dllfile\shell
as in the following:
What is regsvr32?
Regsvr32 is an executable file that gets a Dll file name as an argument and runs its
DllRegisterServer function to allow pages on that server to access its functions