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For future reference, you may find more visibility if you post in one of our Hardware forums, since this is an issue with interacting with hardware. Just to confirm, you are trying to run the FTDI example code at http://www.ftdichip.com/Support/SoftwareExamples/CodeExamples/LabVIEW.htm? Could you tell us what the issue is that you are encountering? How did you try to get the examples working? Where did you install the drivers? Are you using the 32 or 64 bit version of LabVIEW 2011? The drivers that FTDI published are simply DLL calls, so as long as the driver is installed, you should be able to use an Invoke Node to call into those DLLs to perform whatever methods you might need.