Registry Clean Pro is a utility that safely removes invalid entries from the Windows registry, thus optimizing the performance of your computer. You can schedule Registry Clean Pro to scan the registry regularly: every day, once a week or once a month. You can use the Custom Scan option to search the registry for particular types of errors. Registry Clean Pro can even check the registry in background mode and alert you when it finds any errors.
Limitations: 30-day trial. Does not scan for COMActiveX or file extensions.