Solution : https://service.sap.com/sap/support/notes/1150277 (SAP Service marketplace login required)
Key words :
enable 'script activex controls marked safe, 'tools'->'internet options'->'security'->'internet', 'download signed activex controls', web dynpro java reason, acf base control correctly, 'run activex controls, micorsoft internet explorer, web dynpro page, web dynpro abap, automatic download feature
Related Notes :
| 1488874 | ACF: Automatic download or installation |
| 1179524 | Installation Note for Viewer in SAP ERP EHP4 |
| 1016683 | ACF controls on Vista |
| 766191 | Active Component Framework Installation |