I am using IIS 4.0 and SQL Server 7.0 and need to create a random UserId which will not be duplicated. This cannot be sequential as it is stored in the users cookies which would allow users to change the ID value in their cookie to access someone elses information. I do not want to use passwords or user names at this stage for fear of deterring users from using the site.<BR>I have thought if incrementing the ID number by a said odd number but again the user only has to create three sperate records and look at the contents of the ID to work out the sequence.<BR>Does anyone know how I may achieve this?