The following is the interaction during the patch application
C:\4300317\OID_184.108.40.206s> cscript //nologo patch.js
You are installing OID_220.127.116.11s component for ORACLE_HOME C:\oracle\o817
Are you ready to Continue ? [N] =>
Installing DB_18.104.22.168 component for ORACLE_HOME C:\oracle\o817
The backup directory already exists.
Do you want to Continue [N] =>
Backing up Mandatory Install Files
Installing Mandatory files from patch to appropriate directories
Backing up Optional Install Files
Installing Optional files from patch to appropriate directories
Installing New files from patch to appropriate directories
Patch Installation Completed, please inspect for any errors during patch install and verify against the known issuses section the Pre-installation Notes.
There is no "known issues section" in the README.html that came with the patch. Also, there is no log file generated during the patch install. Consequently, only place to inspect for errors is on the DOS window itself.