how to add login user (ASPNET) to MS SQL 2000 Desktop Engine server (MSDE2000)?

How do I add login user ASPNET to my SQL 2000 Desktop Engine Server?. I can not find the "Server Manager" in the Start - Programs. Is there any other way to get around adding ASPNET login to the SQL server so I can test my VB program. I got the error: Login failed for user 'com_name\ASPNET'.Use OSQL, a command line tool. Find it, and from the command prompt:

osql -S servername\instancename -E -q
 --Line numbers will appear
EXEC sp_grantlogin 'com_name\ASPNET'
go
use <databasename>
go
EXEC sp_grantdbaccess 'com_name\ASPNET'
go
EXEC sp_addrolemember 'db_owner', 'com_name\ASPNET'
go