Search for unnecessary Registry entries on default places (like RunMRU)
Search for links to programs that do not exist anymore
Search for connections to old fonts that are no longer installed on your system
Scheduler to let the program start automatically after a time period specified by the user
Print out your results on a local printer or on a network printer
All changes are logged in a Registry file that allows you to undo the changes
Program can be installed on USB sticks, floppy disks or nearly all other re-writable media
Very low system resources required
Read more here
To get 1-abc.net Registry Washer 4.00 full version license worth $19.99 ,
1. Visit the registration page here
2. Fill name and email address, click "Submit"
3. Check email and click verification link
4. you will receive the key to your email
5. Download , install and register using the key you have received.