Custom Shaders in Mental Ray for Maya 5??
 

Anyone know how to get the Mental ray shaders (Transmat, Parti_Volume, Dielectric... etc....) to show up in the hypershade in Maya 5?? I've tried the DOS command

SET MAYA_MRFM_SHOW_CUSTOM_SHADERS=1

which worked in Maya 4.5, but that wont work either.
Any Ideas?

It wont work with DOS.
Find your Maya.env file
Open it with notepad
Add the following line :
MAYA_MRFM_SHOW_CUSTOM_SHADERS=1 .
Save the file.
enjoy.