We tried that, it didn't work.
Far worse - I managed to break steam for him and have no idea how. During an installation of gfwl, steam began with some kind of hickup. Responds for a second - doesn't respond for several seconds. We did a reinstallation on a completely different partition, but the error persists. What to do?
This error plops up, every time I close steam, when it's not responding: buildbot winslave04 steam steam_rel_client_win32@winslave04
Google suggested a steam-overlay problem. Doesn't seem to be overlay connected though, I switched that off - didn't help.