With JV16, I never said anything about performance improvements, I'm talking system maintenance, you can look at it anyway, call it by any name you like, but it is a fact that a registry that ends up over time getting a massvie amount of useless, dead and bad entries does degrade the system.
And stash we are not talking about removing a few things here and there, I'm talking about when you are at the point of wanting to reinstall the OS, then there is probably and quite possibly in the area of hundreds or thousands of problems in the registry and with that huge of amount, with bad entires, it does do jack.
Contact the developer of JV 16 and speak to him over this matter and if you have experience then pick the guys brain and see what he has to say.
http://www.macecraft.com/contact/
Personally I have been cleaning my registry by hand and with tools for over 10 years without issue, people that spew on over the matter of cleaners don't really know what is going on here.
Yes TRUTH number ONE there are many apps out there for this that are CRAP and it is a difficult area to learn, but once you do know and understand and how to work, with and deal with it, there is no disputing the benefits for system stability.
And I'll REPEAT myself again, with a PROPER Reg Tool you can't destroy anything, because it makes a Reg BACKUP file, so all you do is just click it, if there is any issues.
The fact that people are going on about this and don't understand a registry export file, for backing up the registry, goes to show the lack of experience in this matter.
DBSX it is not just a matter of user intervention and installing crap software, there are plenty of reputable software companies out there where their software at times leaves behind entries in the registry that are not removed on a uninstall. What you have mentioned is not true at all. Plus it is so easy for someone not paying attention to pick up a little spyware here and there.
Also are you aware that all most every action that goes on with the computer is marked in the registry, example download a zip file, unzip it on the desktop and install a application, or just unzip something in that zip, then throw the zip in the trash and delete.
That zip file and application, or whatever was in the zip where marked in the registry and now you threw them away and the registry has that dead entry of all of this that was just sitting on the desktop.
Here is a Zip I just put on my desktop unzipped it then tossed it in the trash, now a dead entry in the registry:
http://img226.imageshack.us/my.php?image=screenshot9ka.jpg
Just those simple little tasks all day long of simply using the computer end up becoming a mess in the system that has nothing to do with a user messing up anything, it is just the way the OS works.
ALOHA
P.S. Here is a picture of what a quality registry application does, make the Registry entry backup:
http://img203.imageshack.us/my.php?image=screenshot2nr.jpg
With this backup it is nearly impossible to mess up the OS, unless for some odd reason the application in question did not create a proper backup and in 7 years of usage of Jv16 I have never once seen this to be the case and it has never once ever messed up anything.