Installing IBM DB2 Version 7.1 FixPak 1 or later corrects the condition that caused DB2 to issue the following error:
Test connection failed because of an error in initializing provider. The IBM OLE DB Provider is not available at this time. Please refer to the readme file for more information.
For more information on using the IBM OLE DB Provider for DB2, please refer to http://www.ibm.com/software/data/db2/udb/ad/v71/oledb.html.