@trium it is against licensing to distribute piriform software in that manner. However, if you install ccleaner 4.19 (or whichever version makes you happy) you can copy the exe files from the folder to a new folder, create an empty text file called portable.dat (BE SURE IT ISN'T REALLY portable.dat.txt) in the folder and you've created the portable version. I would not suggest mixing version exe files, as you've been asking about, however I've no idea if it actually would cause issue.