Solution : https://service.sap.com/sap/support/notes/1008299 (SAP Service marketplace login required)
Key words :
vbs set w3svc/apppools/enable32bitapponwin64 true, windows 2003 64-bit operating system running, %systemdrive%\inetpub\adminscripts directory 2, symptom trexhttpserver shows red, internet information server, trex 32-bit version, trex 32 bit version, trex http server, 32-bit compatbility mode, windows 2003 64-bit
Related Notes :
1501286 | TREX 7.10: HTTP server doesn't work after upgrading to 7.10 |
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802987 | TREX 7.0: Central Note |