My apologies; looking back at what I wrote, I realize I did respond harshly. Your comment (and you) deserved more courtesy than that...

I guess my disagreement stems from the fact that I don't see what I type into those boxes as commands (even though some search boxes, like the one in the Windows start menu, can work that way). I think of those boxes as fixed to one command, search, and all I get to type are parameters.