The version we ship with DokuWiki is not based on the old SourceForge project (except for their ApacheKill.exe). We use apachefriends' server and the official windows PHP binaries, strip it all down and compress it. Build script for all that is here:
https://github.com/splitbrain/dokuwiki-stickbuilder
We still ship PHP5.6 because people often use the stick version to evaluate DokuWiki and because many plugins had problems with PHP7, 5.6 was a safer bet.
Some day I need to build a new release using probably 7.2 and maybe switch to 64bit. PRs welcome