Is Single logon compatible with Vista?

I am testing the installation of our multi-user clients with roaming users and single logon on a new Windows Vista.

The Lotus notes single logon service is running but the user is prompted for the password to log in Notes.

The processes nslsvice.exe and nsl.exe are shown among Vista processes when I log as local administrator but they desappear when I switch to a normal user account.

It seems to me to be related with Vista security, is there any setting I overlooked?

Subject: Is Single logon compatible with Vista ?

I have this working with my Vista, although it did not work immediately.

Even though I had rebooted, it did not kick in until the next day.

Subject: RE: Is Single logon compatible with Vista ?

no success even the next day