Is it safe to let a registry cleaner delete norton temps?

Hi I have an old program I run to clean pc and registry, it deletes temp files, ocas' norton temp at least after I loaded new program which is running fine by the way.  Are all temp files okay to delete? 

Its defender pro toolbox program I used to use on my old win98 pc years back.  the toolbox from it still is useful but is it bad, prob wasnt built for sp3 a million years ago  but works fine. 

Is this bad?

 

Thanks.