Hi, One clarification needed : I have to apply one patch which requires AD.I and we are currently on AD.H. But as oracle suggested to go ahead with that patch, during application of US version, no error has come. On applying GERMAN version, it has errored saying pre-requisite has not been applied. But the pre-requisite patch number is the same as the one applied in US version. Error : ! 4524544 AD: PLE11510.2CU.9:AD.ADRELINK: CHANGES FOR AIX SPECIFIC VARIABLES DURING RELINK Patch 4524544 is the same patch which is applied in US version. Can you kindly comment on this. I am unable to understand what the sentence below meant exactly 4524544 AD: PLE11510.2CU.9:AD.ADRELINK Regards, Vijayanand Jigatala.