BlackHawk

I see that CCleaner cleans both PerfectDisk and SpyBot Search & Destroy. Can anyone tell me what CCleaner is cleaning in these programs? If there is a write up, help file or whatever that addresses these two program as they relate to CCleaner? I apologize as I have not seen it even though I went looking for information on this. Is there a help file that addresses the cleaning of each Utility? Thank you for the help!