Sage v2017 PDF Converter on a WIN 8.1 WS - What a PITA!! Could not get the driver to install. Tried all the usual suspects, Administrator, UAC, Regedit, etc. Found this recently updated KB. Followed the steps for manual installation of the driver. Failed again from the v2017 \MAS90\Home folder using amyuni.inf. So I tried installing from the v2016 folder. It worked. Not sure if I have a bad INF file in v2017 or what. Just thought I would put it out there in case others were caught in installation hell.