Dear all,
While following the EIDORS tutorials like fmdl= ng_mk_cyl_models(3,,);
show_fem(fmdl); the error is coming like this

'ng' is not recognized as an internal or external command,
operable program or batch file.
Netgen call failed. Is netgen installed and on the search path?
If you are running under windows, I can attempt to create
a batch file to access netgen.
Please enter the directory in which to find netgen.exe.
If you don't have a copy, download it from

Note that you *MUST* use names without spaces. Thus
instead of C:/Program Files/ write C:/Progra~1/


Please help me how to rectify it.