SD - reliable as ever - thanks - that is it. I had not come across 'SID' before but the first Google hit took me straight to the reg key.
Since this info needs to be there before user logon do I assume it is merged from allusers/ntuser.dat?
Is there any way I can view allusers/ntuser.dat (importing to regedit??) without screwing up my own registry?
Last edited by BOAC; 16th October 2010 at 12:25.