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

Question: When using a DSN for a 32 bit application on a 64 bit system, I’m getting the following error message:

The specified DSN contains an architectureThe specified DSN contains  mismatch between the Driver and application

How can I fix?

Answer: The error message point to an architecture mismatch – 32 bit versus 64 bit

To create  a data source name (DSN) that connects to a 32-bit driver on a  64-bit platform, use c:\windows\sysWOW64\odbcad32.exe. To create a DSN that connects to a 64-bit driver, use c:\windows\system32\odbcad32.exe.  If you use the 64-bit odbcad32.exe to configure or remove a DSN that connects to a 32-bit driver there will be the  error  message. The specified DSN contains an architecture mismatch between the Driver and application

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