Additional information on setting up UBB.threads with Windows 10 and IIS 10 with plenty of screenshots can be found here:
https://www.ubbcentral.com/forums/u...n-issue-changing-forum-styles#Post264320
and the next page for php.ini here
https://www.ubbcentral.com/forums/u...n-issue-changing-forum-styles#Post264326

Windows 10 Pro version 1909
Internet Information Services 10.0 (IIS/10)
PHP 7.4.11
MySQL 5.7.31
UBB.threads 7.7.x (installed to ROOT of localhost)

current developer of UBB.threads php forum software
current release: UBB.threads 8.0.1 // wip: UBB.threads 8.1.0
isaac @ id242.com // my forum @ CelicaHobby.com