I don't see comments in the Windows Explorer

When I edit tags in mp3tag, save the changes, and go to the folder in Windows Explorer and put the details view, and show columns Title, Author, Album, Comment, ect ... There is nothing in the comments, when there should have information. The other fields are displayed well.
And if you open the mp3 with Winamp, I see all the fields correctly, including comment.

I saw where the problem is. If active ID3v2.4 UTF-8 option in the options Mp3tag - Mpg, then when save the tags in the mp3, I can see the Comment tags in Explorer.
I have read the message in the forum "Problems with ID3v2 tags in Unicode format?". Here put the problem can happen in some programs, or portable players. But it is normal to happen in Windows XP?.
I have a few files with Unicode tags, but most (like this one that fails me) are not.