Originally posted by Gideon
It's in one of the Tales books and is written by Kevin J. Anderson. He takes over the Death Star and allows the Imperials to make use of its primary functions, but takes the time to harass Palpatine in his throne room -- shutting the doors every time Palpatine tries to walk through them -- until IG-88 notices that the Emperor was using "some intangible force" to wrench the doors open.
That's right. It's from "Tales of the Bounty Hunters." The story is "Therefore I Am: The Tale of IG-88."
It's a really cool story.