SQLConfigDataSource does not add System DSN for 64-bit drivers

Question

I load the odbccp32.dll from System32 and even tried to use from SysWow64 . I use SQLConfigDataSource function to configure my System DSN for specified Driver. This function successfully configure drivers which are 32-bit, but does not do the same for 64-bit drivers. Does this dll only works for drivers which are 32-bit? When I ran ODBC Administrator tool (64-bit) I am able to see the 64-bit drivers and add them manually to System DSN, but I cannot do this using this DLL .

Answer 1

Only 64-bit applications can configure a 64-bit datasource using SQLConfigDataSource . If you application is targeting 32-bit Windows, it will modify the 32-bit data sources when calling this function. You need to configure the data source in a different way (from a 64-bit application, from the command line, modify the registry directly, etc.)