Couldn't Debug SQL By Step Into Stored Procedure On Server Explorer Of VS2008 (or VS2005) On Remote Machine

Hi all,


I couldn't debug SQL Server by "Step into Stored Procedure" on Server Explorer of VS2008 (or VS2005) to SQL 2005 Developer on remote Windows Server 2003 machine, it allway issue exception "Unable to start T-SQL Debugging. Could not attach to SQL Server process on 'Server'. Click Help for more information"

1) The environment:
The Client: Windows XP SP2 (WORKGROUP)
Visual Studio 2008 (or VS2005)


The SQL Server Machine: Windows 2003 Server Sp1 (DOMAIN)
SQL Server 2005 Developer

2) User account and Permission login:
I create the same user account for both Client and Domain Server with the same password, i also add that user to "Administrators" group in both machine.

At the SQL Server on Server machine, i added that account to ServerSecurityLogin with 'sysadmin' role already

3) Connection and authentication:
I used "Windows Authentication" for my connection to SQL server, and i checked sure my account of the connection by SQL command

SELECT SYSTEM_USER,
IS_SRVROLEMEMBER ('sysadmin')

4) Firewall:
I checked firewall like MSDN helping (i also tried to test by turn off firewall in both machine)

5) Visual Studio Remote Debugger:
I read "How to: Enable SQL Server 2005 Debugging" on MSDN with comment "The SQL Server can run on the same machine as the application or on a remote machine. If you are debugging T-SQL code only, then no remote setup is required."
so i didn't config Visual Studio Remote Debugger any thing.

Note: If i "Step Into Store Procedure" at Server locally, it works okey, so on at my PC client locally. But if i move debugging from my client to my Server, it occur error "Unable to start T-SQL Debugging. Could not attach to SQL Server process on 'Server'. Click Help for more information"???

If i execute store procedure on Server Explore, it works okey!

Please help me to find out what problem is???

Thanks,
Haiasc