Two I know of, one Window, one Mac.
Windows
Avstumpfl's Wings platinum 3 Pro version (only the Pro and Mutidisplay versions have secondry monitor output in Presentation mode). Demo available.
Mac
PlaybackPro. I don't have a Mac so have not used this software myself.
In both cases, suggest you create a Black bitmap and use it as your desktop so that when the OS extends to the secondary monitor, it will be black.