Description: Disk Cleaner is a tool to quickly and easily free disk space that is used by temporary files like the system temporary folder, the Internet Explorer Cache and Cookies folder, and the Recycle Bin. It can be expanded with text-based plug-ins & DLLs.
License : GNU General Public License (GPL)
Operating System : All 32-bit MS Windows (95/98/NT/2000/XP)
Programming Language : C++
Website: http://sourceforge.net/projects/dclean/
Note: I think this would be nice little addition to the "official" Portableapps system toools utility belt 
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Use this: https://portableapps.com/node/12969
An excellent program that can provide the disk cleaning options and also the registry cleaning options you're looking for in your other thread.
CCleaner FTW!!!
You could try this https://portableapps.com/node/11905
The developer formerly known as ZGitRDun8705