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On my Windows 7 machine, I created an ODBC data source to an Oracle database via the ODBC Data Source Administrator (c:\windows\SysWOW64\odbcad32.exe). Sometime later, I had to uninstall and reinstall Oracle Client, which resulted in a different Oracle home. So the existing ODBC data sources no longer worked. However, if I try to remove the data source, I get the following error messages:

Microsoft ODBC Administrator
The setup routines for the Oracle in ORA112_HOME ODBC driver could not be found.  Please   reinstall the driver.


Driver's ConfigDSN, ConfigDriver, or ConfigTranslator failed
Errors Found:

Component not found in the registry

How do I remove these ODBC data source entries?

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up vote 11 down vote accepted

They are defined in the registry under \ODBC\ODBC.INI\ in various places depending on if the definition is

System User:






To delete a data source, you have to delete the data source key under ODBC.INI and the entry under ODBC.INI\ODBC Data Sources linking your data source to the driver.

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I had same issue here. But I found my 32 bit entries under:

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This was already stated in an answer submitted over 2 years ago. – Ramhound Apr 5 at 15:31

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