Connecting to SQL2000 from SSIS - sql-server

Question

I can't get my SSIS package to connect to a SQL2000 database - I keep getting
SQL Server does not exist or access denied.
I've tried connection strings like the following:
<ConfiguredValue_1>Data Source=xxx;Initial Catalog=xxx;Provider=SQLNCLI10.1;User ID=xxx;Password=xxx;</ConfiguredValue_1>
<ConfiguredValue_2>Data Source=xxx;Initial Catalog=xxx;Provider=SQLOLEDB.1;Integrated Security=SSPI;</ConfiguredValue_2>
<ConfiguredValue>Data Source=xxx;Initial Catalog=xxx;Provider=SQLOLEDB.1;User ID=xxx;Password=xxx;</ConfiguredValue>
Actually, the SQLNCLI10.1 option gives:
The requested OLE DB provider SQLNCLI10.1 is not registered
For the Integrated Security option, I have set up a proxy & credential that the step is using, which is the same as my login.
However, I can connect to the database using Windows Authentication or a SQL username via an SSMS query window. What am I missing?

Answer 1

I will try to give some suggestions:
(1) Download SQL Server 2008 Native client
To download SQL Server Native Client 10 you should download and install the following package which is a part of the SQL Server 2008 feature pack:
Download SQL Server Native Client
Microsoft® SQL Server® 2008 R2 Feature Pack
Also try removing .1 from provider name: SQLNCLI10
(2) Use Microsoft OLE DB Driver for SQL Server
OLE DB Driver for SQL Server is a stand-alone data access application programming interface (API), used for OLE DB, that was introduced in SQL Server 2005 (9.x)
This provider can be used to connect to SQL Server 2000 instance.
Official documentation: Microsoft OLE DB Driver for SQL Server
Download link: Microsoft® OLE DB Driver 18 for SQL Server (i think it can be found in SSIS providers list without the need to download)
Connection string example:
Provider=sqloledb;Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;
(3) Use ODBC connections
Another way to connect to SQL Server 2000 is using ODBC Driver for SQL Server
The Microsoft ODBC Drivers for SQL Server are stand-alone ODBC drivers which provide an application programming interface (API) implementing the standard ODBC interfaces to Microsoft SQL Server.
Official documentation: Microsoft ODBC Driver for SQL Server on Windows
Download page: Download ODBC Driver for SQL Server
Connection string example:
Driver={SQL Server};Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;
(4) Using SQL Native Client 9.0 OLE DB Provider
Try using the version 9.0 of OLEDB provider which works only for SQL Server 7.0, 2000, 2005 version.
Connection string example:
Provider=SQLNCLI;Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;
References
SQL Server 2000 connection strings
Microsoft SQL Server ODBC Driver connection strings