I am upgrading to CF 2018 from CF 9.
In CF 9 I run the Coldfusion services under a local Windows user I create specifically for the Coldfusion services. In Windows the c:\users\<CF Username>\AppData \Local\Temp\poifiles directory gets filled with thousands of poi-ooxml--<some number>.tmp files. Nothing in CF cleans these up and after discovering them by accident and having to clean up hundreds of thousands of these leftover files, I have one question: will this same thing happen in CF 2018?