VS2003 ODBC SQLDatasources doesn't show SQL Server Express 2005

I'm using VS2003, writing in C++.  I have SQL Server Express 2005 and SQL Server Management Studio Express installed.  SQL Server Management Studio express can connect to MyMachine\SQLEXPRESS using windows authentication.  I have C# code using (local)\SQLEXPRESS on this machine.

In C++, when I call SQLDataSources (SQL_FETCH_FIRST, SQL_FETCH_LAST) to enumerate the servers available on my machine, I see
    Visual FoxPro Tables
    Visual FoxPro Database
    Xtreme Sample Database
    Xtreme Sample Database 2003
    Xtreme Sample Database 2005

As near as I can tell, the ODBC driver for SQL Server Express 2005 is installed -- I've installed the Microsoft SQL Server Native Client (sqlncli.msi) and it claims to have installed successfully.  

Yet I can't enumerate it.

What am I missing?

Thank you.
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clockwatcherConnect With a Mentor Commented:
Do you have an ODBC sql data source setup?   Open up the Control Panel, Administrative Tools, Data Sources and add a DSN to your SQL server database-- System DSN,  Add...,  SQL Server, Finish... enter the name you want for your data source, select your Server instance, Next, select the database you want to associate the data source with and then finish.
josgoodAuthor Commented:

Thank you, thank you, thank you!  That is exactly the solution!

I wasn't aware of that additional step.

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