OK. I'm not really sure where they would be useful in XMPlay. Were you thinking of using them in paths to encoder EXEs? The path isn't needed if you put the encoder EXEs in the same directory as the XMPLAY.EXE file. Or you can put the encoders in a sub-directory and include just that (not the full path) in the command-lines. Let me know if you had something else in mind.