Is there a way to load a script through a command line method?

I have created an IRC addon. I am using an install creator to create the directories, etc. I was thinking of having the installation program run something like run mirc.exe and at the same time load the script (/load -rs whatever.mrc).

I was thinking such as in DOS when you do command line if you could do like:

mirc.exe /load -rs whatever.mrc