Uninstall ExpressConnect for Oracle (ECO) in console mode.
Log in to your machine using an account with administrator privileges.
Shut down all Sybase applications and processes.
Move any log, database, or user-created files that you want to keep from the installation directory to another location.
RS_installation_directory\sybuninstall\ExpressConnectOracle\uninstall.exe -i console
RS_installation_directory/sybuninstall/ExpressConnectOracle/uninstall -i console