IBM Ole DB error in SQLServer 2005 on x64

Error:

Msg 7399, Level 16, State 1, Line 2
The OLE DB provider "IBMDA400" for linked server "(null)" reported an error. Access denied.
Msg 7350, Level 16, State 2, Line 2
Cannot get the column information from OLE DB provider "IBMDA400" for linked server "(null)".

Or

Failed to retrieve data for this request. (Microsoft.SqlServer.SmoEnum)
--> An exception occured while executing a Transact statement or batch.
--> Cannot obtain the required interface ("IID_IDBSchemaRowset") from OLE DB Provider "IBMDA400" for linked server.



Solution:

1) Make sure on your SQL Server 2005 x64 (64 bit) machine that "Allow inprocess" is checked for the linked server provider (IBMDASQL in my case).
--> In SQL Mgmt Studio, connect to the SQL Server Database Engine and go to Server Objects->Linked Server->Providers in the Object Explorer.
--> Right-click on IBMDASQL and select Properties. Check the "Allow inprocess" box in the Provider Options dialog that comes up.

2) Enable Ole Automation Procedures;

sp_configure 'show advanced options', 1;
GO
RECONFIGURE;
GO

sp_configure 'Ole Automation Procedures', 1;
GO
RECONFIGURE;
GO