Solution : https://service.sap.com/sap/support/notes/517070 (SAP Service marketplace login required)
Key words : 
profile parameter dbs/mss/max_duration, unknown reason1 etp111 exit code, upgrade guide iii/ additional actions, iv/ problems/additional actions, specifically describes problems, symptom additional information, ms sql server, environment variable mssql_maxduration, ms sql server 2005, mssql_irowsupported environment variable
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