Those lines are most likely there because you have this software installed: http://www.iaresearch.com/store/Products/M...indManager6.htm
Not being familiar with the program, I have no idea how necessary it is or what it does. BHO's in general are plug-ins/add ons to Internet Explorer. All I can tell you is it isn't malicious and so can't recommend that it be removed. If you are running IE 7, you can go to Tools> Manage Addons and disable it from there to see if you miss its function. Otherwise, contact the vendor's support for information about it.
The button that is on IE's toolbar is there for your convenience. It is basically a registry setting, so doesn't take up any resources, so I wouldn't worry about it either.
If you have any more such questions about HJT lines, please post a new topic in the AntiVirus, Firewall and Privacy Products and Protection Methods
forum. Please only use this HijackThis forum if you have good reason to believe you are infected and can't remove such infection by normal removal methods. Unlike the other forums at BC this is not a discussion forum, sorry.
If you do need help with malware removal, please start a new topic and post the entire log after going thru the prelinminary cleaning steps in the Preparation Guide For Use Before Posting A Hijackthis Log
. This topic is now closed.