Need EraserL commandline help

To clarify:
You can make a shortcut to drop files on and edit the shortcut to add syntax. Also, you can make a bat file and do the same.

What I can't figure out is the proper command-line syntax for dropping a file on eraserl. I tried:
eraserl.exe -file * -method "Gutmann" -results
eraserl.exe -file %1 -method "Gutmann" -results

Both do not work.