The following is the interaction during the patch application
C:\4300317\MODPLSQL> cscript //nologo patch.js
You are installing MODPLSQL 18.104.22.168.5d component for ORACLE_HOME C:\oracle\o817
Are you ready to Continue ? [N] =>
Backing up Mandatory Install Files
Backed up modplsql.dll
Backup of C:\oracle\o817\Apache\modplsql\cfg done
Backup of C:\oracle\o817\Apache\modplsql\owa done
Backup of MODPLSQL 22.214.171.124.5d was successful
Installing MODPLSQL 126.96.36.199.5d in ORACLE_HOME: C:\oracle\o817
Installed C:\oracle\o817\Apache\modplsql\cfg files
Installed C:\oracle\o817\Apache\modplsql\owa files
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.