Hi velou
The LabVIEW 6i Application Builder no longer requires daqdrv. Regardless of your Application Builder and LabVIEW version, you must always install the appropriate driver files on the target machine. For example, if your application communicates with a DAQ board and a GPIB board, then you must install NI-DAQ and NI-488.2 on your target machine. If you are using the VISA VI's for serial communication, than you have to install NI-VISA . If you are using the "old" serial VI's, than you have to include serpdrv separately.
Luca P.
Regards,
Luca