I have
never used this but the program is said to be safe and from what I can see comes from a reputable company, the price is said to be $29.95 on the website
Registry Booster so if your getting it for $19.95 that pretty good but you might want to try
CCleaner and see if you get any benefit from this free program first or and download a trial of
jv16 Powertools and give it a spin see if it meets you needs, none of the software have any spyware or nasties.