no Wine entry into "open with" for exe application

[dino99]

Precise i386
I have wine 1.3.28 (genuine Precise) & wine1.3-gecko installed
but i want to open an exe file, the "open with" dialog box dont propose wine in its list. Selecting "other apps" it still dont find wine.
Searching then apps online, its proposing something wrong again: Wine Microshoft Compat.... which i select but then warn about:

-> To be installed: wine1.2-gecko (1.0.0+1)
-> To be removed: wine1.3 (1.3.28-0ubuntu1)

This is completly borked.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: nautilus 1:3.2.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.1.0-1.1-generic-pae 3.1.0-rc10
Uname: Linux 3.1.0-1-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 1.24-0ubuntu1
Architecture: i386
Date: Fri Oct 21 17:27:05 2011
SourcePackage: nautilus
UpgradeStatus: No upgrade log present (probably fresh install)

[dino99 (9d9)]

forgot to says that its with a gnome-classic session (3.2.1)

[dino99 (9d9)]

Have tried several ways to "add" wine into the context "open with" menu, but still fails to get it.

- mimeapps.list: added into [Default Applications]
application/x-ms-dos-executable=wine.desktop

- /etc/gnome/defaults.list, added:
application/x-extension-exe=wine.desktop

Maybe its an xdg-utils issue.