When installing Gpg4win + Kleopatra the libexpat-1.dll will also be installed although it is not necessary. The dependencies should be updated so the dll will only be installed when users choose to install GPA.
I think this is because we install pinentry-gtk, too. So we have that GTK dependency.
Maybe we should just drop pinentry-gtk and see if someone complains. The fallback pinentry we have is the pinentry-w32 that comes with gnupg.
Gpg4win doesn't include libexpat anymore (since it doesn't include gpa and pinentry-gtk anymore).