PM123's Remote command reference - Error codes

Return code Description
0 No error, everything is fine.
1 The command is not processed because an earlier command in the current set of linked commands has failed.
2 One of the commands arguments is bad.
3The command requires a current song.
4The command is only valid for enumerable objects like playlists.
5The navigation tried to move beyond the limits of the current playlist.
6The command is only allowed while playing.
7The output plug-in returned an error.
8The decoder plug-in returned an error.
9Cannot load or play invalid object.
10Invalid PM123 location string
-1General error.