Wine and MimeType associations

I recently installed a Wine application which associated itself to the .dat extension. I tried uninstalling the application to get rid of the association, but the uninstaller did not remove it.

The next thing I tried was: 1. Open Nautilus 2. Right click on a .dat file, Properties 3. Click on the Open With tab and click Remove.

I could unset the default application, but the "file type" and the icon was still not right.

Then I found out the directory ~/.local/share/mime/application. I removed the file corresponding to x-wine-extension-dat.xml and I executed update-mime-database ~/.local/share/mime/.

I don't know how, but I believe that wine can recreate the removed file based on the information stored in the Wine Windows registry.

Therefore, I executed wine ~/.wine/drive_c/windows/regedit.exe I looked for .dat and similar associations at HKEY_CLASSES_ROOT and I deleted those keys.

Finally I think that the problem is solved.