The new /O[peration] command line option allows to specify a shell operation other than "open". This is very valuable for testing or implementing actions from shell scripts.
Hmm. I don't see that option in the Win XP documentation: http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-...
There's already one clash (/l) between wine's start and Windows'. I hesitate to say that adding another extension is a good idea. I'd feel better if the help mentioned that this is a Wine-specific extension. - Dan