Solution : https://service.sap.com/sap/support/notes/309322 (SAP Service marketplace login required)
Key words :
setthe problem occurs primarily, 6c support package level 5, higher support package level, hkey_local_machine -> software -> oracle -> homex, br152e environment variable oracle_home, higher patch level, symptom sap recommends, windows nt registry, sap service marketplace, environment variable oracle_home
Related Notes :
556232 | Environment settings for R/3/Oracle on Windows |