Hi,
Create an empty text file e.g. c:\empty.txt
Stop the auth service
"net stop CSAuth"
If you are using the default installation path them cd to C:\Program Files\CiscoSecure ACS v3.3\Utils>
run the following command
csutil -n -i c:\empty.txt
Agree to import and you will no longer have a user database....see below:
C:\Program Files\CiscoSecure ACS v3.3\Utils>net stop CSAuth
The CSAuth service is stopping.
The CSAuth service was stopped successfully.
C:\Program Files\CiscoSecure ACS v3.3\Utils>csutil -n -i filename.txt
CSUtil v3.3(1.17), Copyright 1997-2004, Cisco Systems Inc
Creating a new database and index will destroy the existing one.
The persistent logged-on user list will also be destroyed.
Are you sure you want to proceed? (Y or N)y
Initializing database....
Done
If the import file contains the OFFLINE: clause CSAuth will be stopped.
Are you sure you want to import? (y/Y = proceed)y
Cannot import data file: filename.txt
Done
It works like a dream!
Rgds
Paddy