Thanks for replying. In the config of Wine I included my .exe and set them to run on Windows98. I did this on all versions I tested. Is there anything else to do on the 64 bits version ? After having made this config, I go directly to the directory where the exe is (following the path from .wine/dosdevices/). There in a terminal I just type "wine myexe.exe". This works well on my previous version (Ubuntu 11.10 32 bits). Is there anything I should type in the 64 bits version to make it work ?