I downloaded the free available utility ExecutedProgramList from
http://www.nirsoft.net/utils/executed_programs_list.html
and run it on my computer.
Much to my surprise it reveals all programs I executed in the past ALTHOUGH I run CCleaner frequently.
May I request to add an option in CCleaner to wipe these data as well
According to another thread
http://forum.piriform.com/index.php?showtopic=45003
just some Registry keys must be deleted to achieve this.
Thank you
Thomas