Dale, I am not sure if what you are looking for can be done, but I would first suggest searching the MSDN library for a function that will return a user's permissions in Windows. The following link will take you to the MSDN library:
http://msdn.microsoft.com/library/ You may be interested in the GetPermissions function. Once you have found a function that returns the information you desire, you can use the Call Library Function Node located on the Functions >> Advanced palette to call this function in LabVIEW. You can then use the permission information to determine what access the user will have within the VI. I hope this helps! Matthew C Applications Engineer National Instruments
