Last WotC adventure I ran was probably Red Hand of Doom, many years ago (unless I am forgetting something). I have run some TSR adventures more recently, the most recent of which was the Sea Devils trilogy.
Last WotC adventure I've played in was Out of the Abyss.
Not sure about the one before that - might even be the Forge of Fury (the 3.0 edition version, not long after it came out).