Hmmm. This message got lost somehow. Anyway, the easiest way to get freesci to run is to copy it (.exe and .dlls) into the directory where your game is.
FreeSCI will automatically attempt to load the game in the current directory if no name (or path) is given on the command line.
Of course, this wastes some space, so you may want to set up a config file instead. I'd tell you where you're supposed to put that file,
but I don't really know (I'm a unix guy myself). People whisper in my ear that %WINDIR%\.FREESCI\CONFIG might be an idea, though.
In the simplest case, you need entries such as this one:
[SQ3]
resource_dir=c:\sierra\sq3
A useful option that you will probably want to turn on (unless you're really nostalgic)
is "pic0_dither_mode = flat". This enables interpolation of colors in the background pictures.
Put it in the top of your config file - that way, it will apply to all the games.
Another option I have put in mine is "animation_delay = 0". This disables transition animations completely -
I got bored with them, and besides, Christoph has set the default a little too high for my tastes.