We are attempting to run idl from a web program (all local).

The batch file and IDL program command work perfectly unless they are started from the web page, then we get an error saying the file we are trying to run is not found.
This is obviously a path definition error, but I don't know where to look.

The batch file is
idl -e "@c:\net\wwwroot\DataFiles\username\com_line1" >> Program_Run.txt
The IDL file is
ohello = obj_new("foo")
ohello->open,'c:\net\wwwroot\DataFiles\username
obj_destroy,ohello

The error we get is
% Attempt to call undefined procedure: 'FOO__DEFINE'.

However running directly from command window it all works. Any suggestions will be greatly appreciated.