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The specified DSN contains an architecture mismatch between the Driver and Application

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Overview.

I was working on a application that uses ODBC data source connections. While I was setting up ODBC connection in new server encountered following Error.

Error

Error System.Data.Odbc.OdbcException ERROR [IM014] [Microsoft][ODBC Driver Manager] The specified DSN contains an architecture mismatch between the Driver and Application

Root Cause:

My application archtecture is 64 bit and I have configured 32 bit ODBC data source connections.

Resolution.

Configure ODBC connections in 64 bit configurations.

Start → ODBC Data Source Administrator (64-bit) → Configure datasources

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