Solution : https://service.sap.com/sap/support/notes/1094413 (SAP Service marketplace login required)
Key words : 
sap service market place https, sap note 1010800 trex java client compatibility, java client version works, sap netweaver master guides, sap netweaver master guide, platforms microsoft windows 2003 32-bit, sap note 965097 trex 7, java-based applications, 32-bit compatibility mode, detailed improvements give
Related Notes : 
       
| 1535992 | TREX 7.10 unable to create RFC destination for SAPKB62050-58 | 
| 1303814 | TREX 7.1: Usage of TREX on Virtual Machines (VM) | 
| 1093900 | Upgrade from TREX 7.0 to TREX 7.1 | 
| 1010800 | TREX Java Client Compatibility for Java-Based Applications | 
| 1003900 | TREX 7.1: Central note | 
| 970817 | TREX 6.1/7.0: Update TREX by TREX revision | 
| 965097 | TREX 7.1 platforms | 
| 802987 | TREX 7.0: Central Note |