WeB AS 6.40 installation error

Hi,

I am installing the Web AS and I am receiving the following error after a few seconds:

ERROR 2004-10-07 10:33:59

MOS-01224 Unable to add privileges 'SeTcbPrivilege

SeAssignPrimaryTokenPrivilege SeIncreaseQuotaPrivilege' to account

'WS-403165\dsb' on host '.'.

I am the administrator on this system.

Any suggestions are welcome,

Regards,

Alexander