Am 01.07.2016 um 20:16 schrieb William Hoffman:
The folder in the ctan mirrror siteIndex of /systems/windows/protext shows two .exe files, while the reference page at tug.org/protext implies only one. Do I need them both? TIA
Nope. While ProTeXt.exe is only a symbolic link to the most recent ProTeXt-3.1.7-061016.exe, you can download the one, you like best.
Have fun - Thomas -- http://tug.org/protext/