I would very much like to see the ability to write small scripts in some language (Python,LUA) that will be run when you clean.
In general I don't think the custom <'add folder' and 'add file' for deletion> features are enough for more advanced cleaning.
Say I have a lot of different folders were I only want to delete the files contained in those folders (also recursively) that has a modification data lesser than some value, the contents of the file is ASCII, the file is executable or something completely different.
If you could script your own cleaning mechanisms and let CCleaner supply a GUI for parameters to pass on to those scripts so I can use the same script on different folders or files (if the script needs it) I choose from the CCleaner GUI.
Another suggestion for the CCleaner installer:
Can you make it remember the install settings from last install? That way I don't have to untick most of them every time there is a new update.
