I'm having trouble with the scene_list command

[RETowers]

This might be the fix? (Same error as here right?):

If you are using Windows 7 (and possibly Vista), when you download the file, right click on it and select properties. At the very bottom of the properties window there will be a button that says Unblock. Select that button and press OK before extracting. This will help prevent a possible error that can result from those earlier versions of Windows “blocking” the files because they originated from a different computer.

Pulled from the wiki here.