Try this:
http://www.eusing.com/free_registry_defrag/registry_defrag.htm
Here is a great place to test Sun Java:
jv16 PowerTools Lite 2011. In my opinion, much better than CCLEANER and many others. Possibly not the fastest, but works the best, IMHO.
http://www.macecraft.com/powertoolslite2011/
There is also a Pro version with system accelerator features, does even more.
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
Some really good tools for this purpose, free for home use and very affordable for business use, are here:
This tip from the excellent Mike Martinez.
Looks like a good one here: