Microsoft SQL Server, Error: 87 17march

Source computer: SQL server 2005 SP1
Remote computer : SQLEXPRESS
When I try to register/connect with remote server (named instance) using sql
server management studio I am getting following error:
TITLE: New Server Registration
Testing the registered server failed. Verify the server name, login
credentials, and database, and then click Test again.
ADDITIONAL INFORMATION:
An error has occurred while establishing a connection to the server. When
connecting to SQL Server 2005, this failure may be caused by the fact that
under the default settings SQL Server does not allow remote connections.
(provider: SQL Network Interfaces, error: 25 - Connection string is not
valid) (Microsoft SQL Server, Error: 87)
Thanks
Ontario, canada
Source computer: SQL server 2005 SP1 (Microsoft windows nt 5.1)
Remote computer : Microsoft SQL server express edition (Microsoft windows
nt 5.1)
-
ontario, canada
"db" wrote:

> Source computer: SQL server 2005 SP1
> Remote computer : SQLEXPRESS
>
> When I try to register/connect with remote server (named instance) using sql
> server management studio I am getting following error:
> TITLE: New Server Registration
> --
> Testing the registered server failed. Verify the server name, login
> credentials, and database, and then click Test again.
> --
> ADDITIONAL INFORMATION:
> An error has occurred while establishing a connection to the server. When
> connecting to SQL Server 2005, this failure may be caused by the fact that
> under the default settings SQL Server does not allow remote connections.
> (provider: SQL Network Interfaces, error: 25 - Connection string is not
> valid) (Microsoft SQL Server, Error: 87)
>
> Thanks
> Ontario, canada