attempted to install patch 20230795 for Hyperion 11.1.2.3.500.17 it failed, and step 3 in the readme
step 2 in the readme:
Uninstall the Financial Reporting Studio by going to Control Panel, Add or Remove Programs, and then uninstall Financial Reporting Studio.
Then ran OPatch below is from the log file:
[Apr 2, 2015 7:12:45 PM] Running prerequisite checks...
[Apr 2, 2015 7:12:45 PM] Patch "20230795" is ignored as it is not a "Fusion Applications patch".
[Apr 2, 2015 7:12:45 PM] Check if patch "20230795" is a no-op patch.
[Apr 2, 2015 7:12:45 PM] Opt. comp. not in OH inventory: oracle.epmsystem.fr, 11.1.2.3.0
[Apr 2, 2015 7:12:45 PM] [ oracle.epmsystem.fr, 11.1.2.3.0 ]
[Apr 2, 2015 7:12:45 PM] OPatch will clean up 'restore.sh,make.txt' files and 'rac,scratch,backup' directories.
You will be still able to rollback patches after this cleanup.