Solution : https://service.sap.com/sap/support/notes/190138 (SAP Service marketplace login required)
Key words : 
~ftp/general/frontend/patches/rel45b/windows/win32/, ~ftp/general/frontend/patches/rel46b/windows/win32, enhanced logon register, additional key words, choose 'logon register', 6b gui + patch, applying patches, session manager build 4020/4, session manager, build number 4047/1
Related Notes : 
       
| 96885 | Downloading front end patches |