Some command arguments?

[MrRobot]

Hey guys,

I need to know some command-line arguments to play a file from the command prompt.

Like 'winamp myfile' plays the file.
Is it possible to;

1) start winamp minimized if it needs to launch as the first instance

2) Don't clear the playlist while playing the file, this can be by adding the file to the playlist or playing the file without touching the playlist.

Thanks!