command line option --dir to specify start-in directry?

I thought It would be nice to have a command line option to accept the start-in folder. Here's what I tried. It works nice for me on Windows 7 machine.

I wanted to open DreamPie from the folder I am in by right-clicking menu on Windows. Then I came up with this approach [here] (https://github.com/otterb/Send2Dreampie). Basically, it's a simple registry hack but I had to make a batch file to change directory before launching dreampie because there was no command line option.