All releases of Hyperion / Oracle EPM 220.127.116.11 through 18.104.22.168 hosted on MS Windows Server do the following:
While this doesn't hurt anything, if you want to clean things do, do the following after you've finished deploying all of your WebLogic services.
Open regedit and export the Hyperion Solutions registry hive to your desktop.
Open this file in notepad/Notepad++ and do a Search->Replace.
Change Your environment has been set.; to nothing. Save the modified .reg file.
Double-click the .reg file to import it back into your registry.
Do this on every server.