Good Doom level editor for windows?

Is there currently a functioning Doom level editor with the following
properties?
1. Available for no charge.
2. Sup****ts the Boom extensions.
3. Has a working flats browser.
4. Sup****ts DEU's approach to producing linedefs joining a set of
   vertices and sectors attached to a set of linedefs.
5. Runs on Windows XP Home.

Yadex manages all but #5 (and is hence the reserve option if nothing
Windowsy comes up).

The current release of SLADE manages all but #3. The program crashes
as soon as I try to make it show me the available flats. Strangely, wall
textures are fine. This is a real pain, because it actually manages to
do #4 better than anything else does.

DoomBuilder manages all but #4.
-- 
Martin Read - my opinions are my own.  share them if you wish.
\_\/_/ http://www.chiark.greenend.org.uk/~mpread/dungeonbash/
 \  / "the lights ****ne clear through the sodium haze the night draws near
  \/ and the daylight fades" -- Sisters of Mercy, "Lights"