If you want to find out which file type is opened with which application you normally take a look into the File Types tab in Tools > Folder Options. Unfortunately though this menu that is displaying all registered file types is not listing lots of information especially if you consider that you cannot resize the window which means that you can only see several file types there and have to scroll a lot.

>>Permalink

Did you ever have the problem that you wanted to change the file association of a certain file type but were not able to ? The normal way of right-clicking the filetype, clicking on Properties, then on the Change button next to the Opens With entry and browsing to the executable did not work for me because the executable was not added as the default software.

>>Permalink