I am running the Attunity PowerPivot connector on a Windows 7 x64 machine, with 32 bit Excel and Power Pivot.

When I enter the connection information of a server I get "Test connection failed"
(using the host:[port][/service name] of a known server)

-- Log File --
Info: Temporary feature 'oledbOracleSpecificProvider' is enabled with a value of 'true'
The previous messages were generated before the log file was opened
(Last message occurred 2 times)
[2011-08-30T11:42:28.845]; PowerPivot Connector for Oracle Log (V5.3.0.10, INTEL-NT 32-bit) Started at 2011-08-30T11:42:28
[2011-08-30T11:42:28.845]; Trial license issued by Attunity Ltd. on 17-May-2010 (001305240)
Licensed to Evaluation only for ORACLE8 on <all machines> (WindowsX64)
Running on host MMARKHAM7.meridium.com, IP address 10.10.60.77

[2011-08-30T11:42:28.845]; Warning: No locale ID is specified (Windows codepage #65001)
[2011-08-30T11:42:28.845]; Info: Temporary feature 'oledbOracleSpecificProvider' is enabled with a value of 'true'
ORA9045E: sql_connect(Attaching To a Server)
ORA9045X: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

ORA9045E: sql_connect(Attaching To a Server)
ORA9045X: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

ORA9043E: Could not connect to ORACLE
[2011-08-30T11:42:29.438]; ORA9045E: <:sql_connect(Attaching To a Server):>
ORA9045X: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

ORA9045E: <:sql_connect(Attaching To a Server):>
ORA9045X: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

[2011-08-30T11:42:29.438]; [S1000] [9013]General error in nvITDP_Bind - rc = -2220. Please refer to the log file for details.
[2011-08-30T11:42:29.438];