AX 2009 enable of Cubes for EP User

Hi All,

I am working in ax 2009 for enable of cubes for web user.

while i am working on cubes, i am facing the following error.

Errors and Warnings from Response

Internal error: The operation terminated unsuccessfully.

Server: The operation has been cancelled.

Errors in the back-end database access module. The provider ‘SQLNCLI.1’ is not registered.

The following system error occurred: Class not registered

Errors in the high-level relational engine. A connection could not be made to the data source with the DataSourceID of ‘Dynamics Database’, Name of ‘Dynamics Database’.

Errors in the OLAP storage engine: An error occurred while the dimension, with the ID of ‘DATAAREA’, Name of ‘Company’ was being processed.

Errors in the OLAP storage engine: An error occurred while the ‘Currency code’ attribute of the ‘Company’ dimension from the ‘Dynamics AX’ database was being processed.

Your Help Highly Appreciated here.

Thanks & Regards