Solution : https://service.sap.com/sap/support/notes/802987 (SAP Service marketplace login required)
Key words : 
dvd/cd browser > software package request, operating system user <sapsid>adm, sap netweaver 2004s trex 7, special access rights assigned, trex installation directory <trex_dir>, user <sapsid>adm, user <sapsid> adm, usr/sap/<sapsid>/, trex installation cd, trex installation cd 3
Related Notes : 
       
| 1450091 | TREX 7.00: Revision 50 | 
| 1416922 | TREX 7.00 Rev. 49 | 
| 1400223 | Trex 7.00: Revision 48 | 
| 1352720 | TREX 7.00: Revision 47 | 
| 1320475 | TREX 7.00: Revision 46 | 
| 1307032 | TREX 7.00: Revision 45 | 
| 1286769 | TREX 7.00: Revision 44 | 
| 1254399 | TREX 7.00: Revision 43 | 
| 1224613 | TREX 7.00: Revision 42 | 
| 1164544 | TREX 7.00: Revision 41 | 
| 1158449 | TREX 7.00: Revision 40 | 
| 1142239 | TREX 7.00: Revision 39 | 
| 1113809 | TREX 7.00: Revision 38 | 
| 1108688 | TREX with GTS as of Release 7.2 | 
| 1100114 | TREX 7.00: Revision 37 | 
| 1094413 | Applications based on SAP NetWeaver 7.0 using TREX 7.1 | 
| 1093900 | Upgrade from TREX 7.0 to TREX 7.1 | 
| 1087518 | TREX 7.0 Revision 36 | 
| 1066679 | TREX 7.0 Revision 35 | 
| 1050579 | TREX 7.00: Revision 34 | 
| 1038243 | TREX 7.00: Revision 33 | 
| 1034319 | TREX 7.00: Revision 32 | 
| 1029783 | TREX 7.0 Httpserver does not work in 64 Bit Windows | 
| 1025555 | TREX 7.00: Revision 31 | 
| 1022083 | TREX Windows 64-bit on Netweaver 2004S SR 2 InstallMaster | 
| 1021003 | TREX 7.00 - Update Windows 2003 64-Bit installed from DVD | 
| 1014851 | TREX 7.00: Revision 30 | 
| 1008299 | TREX 7.0: Configuring IIS on Windows 2003 64-Bit | 
| 1007087 | TREX 7.0 Revision 29 | 
| 1001893 | Update to TREX 7.0 Revision 28 | 
| 998553 | Update TREX 70 Revision 25 to higher TREX 70 Rev on Windows | 
| 994365 | SAPCAR version for TREX 6.1 + 7.0 releases | 
| 975965 | TREX 7.0/7.1: Data backup (online) and recovery | 
| 970817 | TREX 6.1/7.0: Update TREX by TREX revision | 
| 954973 | SRM 5.0 SP-Stack 05 (07/2006) (SAPKIBKT05): Release/Info Not | 
| 936591 | TREX 6.1/7.0: Linux 64 bit supported by TREX 32bit binaries | 
| 935134 | TREX 7.0 SP6 (HP-UX): No CCMS parameter reporting in RZ20 | 
| 917389 | TREX 7.0: TREX application pool in IIS not started | 
| 909437 | Update to TREX 7.0 SP6 | 
| 888151 | TREX 7.0: reboot privilege | 
| 884741 | Update to TREX 7.0 SP5 | 
| 865265 | Upgrade from TREX 6.1 to TREX 7.0 |