Installing Multiplugin

I ran the installer for FlyakiteOSX 3.5, it got to:

Installing: iTunes Multi-Plugin 2.3.1 © loc[a]lhost

It displays it as right to the end of installation (the progress bar), and now it's just doing nothing, it doesn't seem to close either.

Should I delete the process and try installing it again?

..Or, ..?

#385577