Opening shared files on networks

I am using the "Reset" procedure to open untyped files for reading. I
have set the "Filemode" variable to zero (for read only). My problem is
that this does not seem to allow the files to open simultaneously on
seperate computers on an NT or Novell3.12 network.

I suspect it could be to do with setting the share mode of the files on
opening. I could do this using the "FileOpen" function instead of

Does anyone know what the problem is and the best way to solve it?
-- Ian Dunn