Office 2007 file associations don't work with Managed Bottles in Ubuntu
With this particular problem, double-clicking on .doc/.docx files works just fine with a standard, single-user installation of Office 2007 in Ubuntu 11.x (and up) but these associations fail with managed bottles.
The system wide default mime associations are provided in /etc/gnome/defaults.list. That file controls which application is preferred for any given mime type.
We establish our defaults in /usr/local/share/applications/defaults.list.
Unfortunately, Ubuntu has it configured so that the system choices overrule the /usr/local/share choices, which is not considered 'correct' behavior.
There are two ways you can adjust for this.
1) The first is to modify /etc/gnome/defaults.list and to basically copy in every mime type you'd like from the /usr/local/share/applications/defaults.list file.
2) The second, and much easier, way would be to modify this file:
to change the order the defaults files are pulled in. There is a line within the above file that reads something like this: