I have a suggestion for another app that CCleaner can clean up. Adobe's free Flash Media Live Encoder 3.x creates session logs by default in the root folder of C:/, although the logs can be created elsewhere, depending on how the user is using FMLE. The name of these logs take the form
fmle_session_yyyyddmm_######.log
The logs typically range in size from 2kb to a couple of hundred kb, sometimes larger. One log is created for each webcast. Like most any other logs, these are candidates for deletion by a knowledgable user & so could be added to CCleaner. During a cast, the current log is open and being added to as necessary. CCleaner probably shouldn't remove the most-recent log.