I had no idea what the relevance of search_glow was to your question about disabling the Microsoft Live toolbar.
If you'd entered search_glow as a search in, say, Google, you'd have found a host of references about it being a bit of buggy software from Microsoft.
This one was a fairly good explanation of wat's going on and, more importantly, how to get rid of it!
http://www.itconsultancy.org/spyware_search+glow.htm
Hope it helps!
JOhn, July 2008