Oracle - Error en servicio Oracleagent11g1Agent en windows server

Saludos,

he estado teniendo problemas con los servicios de Oracle... especificamente el servicio Oracleagent11g1Agent,
intento lanzarlo manualmente y me sale este error

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Services
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Windows could not start the Oracleagent11g1Agent on Local Computer. For more information, review the System Event Log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code 2.
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OK
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¿A qué se debe?