Solution : https://service.sap.com/sap/support/notes/1159083 (SAP Service marketplace login required)
Key words : 
windows standalone internet graphics server, identical truetype font files, platform-independent graphics library, windows gdi library, sap gis interpreter, windows standalone igs, windows settings define, standalone igs, windows settings, windows gdi
Related Notes : 
       
| 1403895 | SAPGISXML: IGS / PTV interface configuration | 
| 1135220 | Installing IGS together with PTV servers | 
| 844669 | Profile parameter of IGS as of Version 7.x | 
| 793473 | Applying a patch for Windows standalone IGS | 
| 458731 | Internet Graphics Service: Main Note |