问题
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.
回答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.)
来源：https://stackoverflow.com/questions/61205756/sqlconfigdatasource-does-not-add-system-dsn-for-64-bit-drivers