delete "Open with" program for a file type

[Mario Vukelic]

On Sun, 2006-06-11 at 21:03 +0000, NikNot wrote:
> The entry I'm trying to remove is one I added via "Open with other
> application...", and I cant see any "Remove" to click on
> This
> probably requires editing some file in .gnome2; but i'm unable to find
> which one.

I have just tried adding OpenOffice Writer for *.txt files using this
method, and I can remove the entry as described. Do you use Ubuntu 6.06
LTS (Dapper)?