Solution : https://service.sap.com/sap/support/notes/354042 (SAP Service marketplace login required)
Key words : 
additional key words bw 2, directory sapgui/rfcsdk/bin, sapgui/rfcsdk/lib, general protection fault, sap gui 32-bit, sap gui patch, 6d patch 172 version 4640, windows system directory, 6d patch 258, directory system
Related Notes : 
       
| 336535 | Business Explorer Map crashes on Windows 2000 | 
| 310562 | BW 2.0B/2.1C front end patch 06 | 
| 197460 | BW Frontend Checktool sapbexc.xla |