good point ... and i'm sure others will answer you ... but ...here is what i did that worked...
on my pc c drive ... i created a folder called Shared .... and i moved a Movie Folder into it.
I then made sure I had right ip of computer in xbmp config file and bam ... it worked. ... when i clicked on Network (xns) the Movie Folder was there ... and it worked!
I could see everything in that folder... so I then put MP3 folder in Shared folder ...and that worked to. I haven't figured out how to share my cdrom drive yet ...
All this is done without opening up regular version of relax ...
I too don't know how to open relax program when Service is on and add folders that way... maybe someone can hep both of us.