OLEDB connection error with (win 64 bit server)

Hi

Im trying to connecting from SQL 2005 (win 64bit server) to a Oracle database via OLEDB  but get the following message. The OraOLEDB.Oracle.1 provider is not registered on the local machine.

If we try ODBC we get the following message "error in initializing provider. Attemt to load Oracle client libraries threw  BadImageFormatException.This problem will occur when running in 64bit mode whit the 32 bit Oracle Client components installed."  

It should be the 64 bit client that is installed.

In the test environment (32 bit win) both works.

Pleas help

Rickard