Solution : https://service.sap.com/sap/support/notes/1408098 (SAP Service marketplace login required)
Key words : 
symptom office 2010 document crashes, microsoft quick access toolbar, quick access toolbar, office document displayed, prerequisites program error, essential menu items, attachment qat-saveas, sap office integration, terms sap officeintegration, microsoft office button
Related Notes : 
       
| 1623752 | WordContainer: Release for MS Office Word 2010 | 
| 1611709 | Office 2010 crashes on using quick option "SaveAs", "Print" | 
| 1442028 | SAP GUI for Windows: No support for Office 2010 64bit | 
| 1053737 | Expected release dates for SAP GUI for Windows & ITS Patches | 
| 563161 | SAP GUI, SAP ITS & SAP IGS patches on Service Marketplace | 
| 535308 | How to apply a SAP Front End patch? | 
| 330793 | Downloading patches |