Hello, Thank you very much for your answers! @DanKegel: yes, I can open the files by first running MS Office, and then using File / Open. But It not an easy way to open a file... @DanKegel & James McKenzie: yes, the command: wine start Doc1.doc works fine! Great! So, what is the next step? How to use the commande "wine sart" for each file I click on it? Many thanks cp @James McKenzie: I read here [1] that wine 1.2.0 for Ubuntu 10.04 is a beta package... so I'm hesitating to use it. have you tested it? [1] http://www.winehq.org/download/deb