Solution : https://service.sap.com/sap/support/notes/1342650 (SAP Service marketplace login required)
Key words :
--> installation--> 3 - installation - standalone engines--> sap netweaver search, upgrade guides--> sap netweaver--> sap netweaver 7, xml-based microsoft office documents, -existing documents returns rc=0, query optimizer trex_ext_export_indexes returned, upper case wrong result, existing trex instance, support package reason, fix program errors, mfdownload procedurefor details
Related Notes :
| 1021162 | Update TREX 7.10: Central Note |
| 1003900 | TREX 7.1: Central note |