So far as I have been able to ascertain, nothing does this very helpful task better than Toolbar Cop. It’s a little program, published in 2005 (!), but it does the job faster and more effectively than anything else I’ve tried, on every version of Windows since 2000. It does its job using .REG files for each item, so you can easily re-enable by a quick merge.
Its home is here:
http://windowsxp.mvps.org/toolbarcop.htm
One of several good download locations:
http://majorgeeks.com/Toolbarcop_d4126.html