messed around with Boreas' idea and it does not seem to work either through lsxcommand or from the click. if i use exactly what you pasted i get no action when clicking or writing in lsxc. if i put quotes around the parameters ls just reads it as explorer.exe and skips the rest.
these are my lines of code now:
evars.rc
MyComputer "explorer.exe /n,/e,::{20D04FE0-3AEA-1069-A2D8-08002B30309D}"

theme.rc
menu_fileOnLeftClick "$mycomputer$"

getting closer though. what bugs me is that i can see the light at the end of the tunnel, just i cant tell if it receeding or approaching =).

wergeld