These are binaries for the OCX version of the project.
It's recommended you unregister previous versions before registering this new one.
It maintains the same GUIDs but has a new typelib version.
Use the bitness that matches your host, e.g. VB6, ucSimplePlayer-v2-3-32bit; Office 64bit, ucSimplePlayer-v2-3-64bit.
You can register both to switch back and forth in twinBASIC, just put them in different folders.
Register with regsvr32.
Note: For twinBASIC, it's recommended you use the UserControl version found in the demo project.