Vighnesh Udup wrote:I installed a "SQLSERVER 2000" on my system
Are you aware that SQL Server 2000 is really outdated? It's been superseded by both SQL Server 2005 and SQL Server 2008 already.
That said, your connections are being denied. There are three possible reasons:
1) you have some firewall software that is blocking the connection.
2) the SQL Server 2000 is running on a different port.
3) your SQL Server 2000 is not configured to accept non-local connections.
To check if this is set correctly, open the "Server Network Utility". Make sure that TCP/IP is one of the enabled protocols, select it on the right and click Properties. Make sure that the port is 1433, or change the port in the connection
string to match this port.