It does what it says!

Features

Program Summary:
CCleaner (Crap Cleaner) is a freeware PC optimization tool. That removes unused and temporary files from your system - allowing Windows to run faster, more efficiently and giving you more hard disk space. The best part is that it's Small, Fast and Free!

Cleans the following Windows components:
Internet Explorer
- Temporary File Cache.
- URL History.
- Cookies.
- Hidden Index.dat files.
- Last download file location.
Firefox
- Temporary File Cache.
- URL History.
- Cookies.
- Download manager.
Recycle Bin
Clipboard
Windows Temporary files
Windows Log files.
Recent Documents (on the Start Menu).
Run history (on the Start Menu).
Windows XP Search Assistant history.
Windows XP old Prefetch data.
Windows memory dumps after crashes.
Chkdsk file fragments.


Advanced Options allow cleaning of:
Menu Order cache
Tray Notifications Cache
Window Size and Location Cache
User Assist history
IIS Log Files
Custom Folders


Application Cleaning:
As well as cleaning up old files and settings left by standard Windows components, CCleaner also cleans temporary files and recent file lists for many applications. Including:

Firefox, Opera, Media Player, eMule, Kazaa, Google Toolbar, Netscape, Office XP, Nero, Adobe Acrobat, WinRAR, WinAce, WinZip and more...


Registry Issue Cleaning:
CCleaner uses an advanced Registry to check for problems and inconsistencies in your registry. It can check the following:
File Extensions
ActiveX Controls
ClassIDs
ProgIDs
Uninstallers
Shared DLLs
Fonts
Help File references
Application Paths
Icons
Invalid Shortcuts and more...


Safety and Security:
CCleaner was designed from the ground to be safe and secure to use. It has multiple levels of checks in place to ensure that it cannot delete any useful information or documents you may still need. We also certify that it contains no Spyware or Adware.

Multiple Languages:
Thanks to the translators, CCleaner is now available in the following languages:
English, German, French, Spanish, Italian, Portuguese, Dutch, Swedish, Norwegian, Danish, Russian, Polish, Japanese, Traditional Chinese and Korean.


http://www.ccleaner.com/ccdownload.asp

Crapcleaner is a great little program

I use it everyday

Sounds good, but that's a lot of very low level stuff for a program to be digging around in. I get a little nervous letting a freeware program do all that.

Are you totally sure it's safe?

Farcronics also have one which seems to be ok.

I use system mechanic though, tis not freeware but its very good, all the utilities you need, ive got an older version, though, the latest ones are even better, they clean up all the system junk, you have options to choose additional file types aswell, plus it has an anti spy ware utility, registry cleaner and defrag, hard disk defrag, net speed optimization, Internet history, RAM defrag n recover, Permanently remove files from your Hard Disk ( Recycle Bin Doesnt do that ) and lots more...its a must for people who Love their computers!
-Hunny

ccleaner has a new version which was released earlier this month:-

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I've been using this for several months now! Great little program!

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this software i use it everyday , i know this software for a long time ago , and untill now i still use it . this is one of the simple n easy software to use and they always update new version .

A new version has been released - v1.41.544

__________________
Save Money! Compact Fluorescent Lamp Guide
To Repair or Replace those Faulty Items?
Indian Spices in Cooking
Get Rid of Your 4-legged Unwanted Visitors

one of the best tools around