Sql 2000 Connection problem with C# windows application

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SQL-server-2000

Hi All,
I develop C# windows application whaere I have to connect with SQL2000 but when I try to run the program then it shows error "ERROR [IM002] [Microsoft ODBC Driver Manager] Data source name not found and no default Deriver specified". What should I do, if it is possible please advice me

Thanks & Regards
Indrajit Dasgupta

Posted 27-Oct-11 5:17am

IndrajitDasgupat

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Uday P.Singh 27-Oct-11 11:36am

are you using system DSN?

IndrajitDasgupat 28-Oct-11 0:32am

Yes I am using System DSN

Bala Selvanayagam 27-Oct-11 12:11pm

What is your connection string ? please post.

If using DSN, is it System or User ?

IndrajitDasgupat 28-Oct-11 0:45am

DSN=BillingCtl;UID=sa;PWD=sa

It is System DSN

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Mehdi Gholam · Answer 1 · 2011-10-27T06:58:00

Solution 1

Use the SqlConnection, SqlCommand native connectors instead of the ODBC drivers.

See : http://msdn.microsoft.com/en-us/library/8t72t3k4.aspx[^]

Posted 27-Oct-11 6:58am

Mehdi Gholam

Bala Selvanayagam · Answer 2 · 2011-10-27T23:03:00

your DSN looking okay

Still,this can happen, if your operating system is server version.

In a server operating system there are two dsn/odbc managers

1. 64 bit dsn/odbc managers - Default one opened by the menu navigations
2. 32 bit dsn/odbc managers

If you are on the server operating system, you would have used the deafult dsn/odbc manager (64 bit) to create the DSN and where as you application might be expecting a 32 bit DSN/ ODBC settings

If you are on the server versin, create the same DSN under 32 bit as well and it should resolve the problem.

You can launch the 32 bit dsn/odbc by the followings

C:\Windows\SysWOW64\odbcad32.exe

Let me know how it goes ?