Execute BackupDB.bat -targetdb pgsql (proceed to next step after the backup is completed).
Since PGSQL was not bundled with earlier versions, take a complete OpManager MSP backup and save it on different location as folder backup.
Uninstall OpManager MSP completely and delete OpManager MSP folder.
Install same build of OpManager MSP with PGSQL database option and make sure OpManager MSP works fine.
Stop OpManager MSP service and copy the backup folder located under OpManager MSP from the backup folder to the newly installed folder under the same location.
Restore the database using RestoreDB.batpresent under OpManager MSP/bin/backup directory and restart OpManager MSP.
For ex : C:\<OpManager MSP Home>\bin\backup>RestoreDB.bat "c:\OpManager MSP\backup\BackUp_APR3_2009_17_43_38_8100.zip"
