It has a rather obvious "install conduit search powered by bing" checkbox.
Worth noting that uTorrent is doing exactly the same thing now. And for those who will immediately assume the worst, I installed it to grab the humble bundle that I'd just bought, surprised to see that what once was the micro and trustworthy uTorrent was now yet another piece of scumware.
I laughed that it also indicated that it would be auto-updated from thence forth. It is an unfortunate situation that updates in PC software now means "addition of crapware".