Solution : https://service.sap.com/sap/support/notes/678193 (SAP Service marketplace login required)
Key words : 
//sapserv3/general/frontend/patches/rel610/windows/win32/, //sapservx/general/frontend/patches/rel610/windows/win32/, sapservx/general/frontend/patches/rel46d/windows/win32, select menu option extras --> import patch 4, sapsetup -> configuration -> program sapadmin, deinstall netinstall correctly anymore, \\<servername>\<sharename>\netinst\sapadmin, register ocx files manually, unpacking patches manually, current frontend patchof
Related Notes : 
       
| 656975 | SEM 3.5 frontend patch 1 (Oct.2003) | 
| 598364 | |
| 571477 | Installation of SAP SEM Release 3.2 | 
| 566094 | Upgrade to SAP SEM Release 3.2 | 
| 396640 | Implementing SEM 3.0A Frontend patch | 
| 361222 | SapPatch: Importing GUI Patches | 
| 147519 | Maintenance strategy / deadlines for SAP GUI | 
| 96885 | Downloading front end patches |