Hi Costas,
It seems that the problem comes from smpd because when I tried the command:
smpd -install, it gave the following error
OpenSCManager failed:
Access is denied. (error 5)
Unable to remove the previous installation, install failed.
As said Sebourban in another post :
"smpd -install should not fail. If the service is already running it would just restart the service as opposed to installing it for the first time. It looks like you do not have access to smpd / MPI with your user name."
Do you think it is necessary to reinstall the mpi?
I will try to reinstall it and keep you updated tomorrow .
Lan Anh