Evelin,
Which VI gives you this error, is it one of your VIs or a LabVIEW shipping VI? Could you post it here? Which version of LabVIEW and OS do you have? Is the VI accessing a file? What are the permissions on that file? You may get this error if you open a reference to the file in one location, and then you try to open the same file again.
Run the VI with the highlighted execution selected. Monitor your block diagram and see where the error exactly occurs.
If you get this error just sometimes, check if you maybe have the Microsoft's utility FindFast running in the background. This utility periodically opens the files, searching them for information like keywords. If Find Fast has a file open when you try to open that file to write to it, you will get a file
permission error. You can easily disable the Find Fast by going to Start»Settings»Control Panel»Find Fast. Go to the Index menu and you can either increase the update interval or you can delete indexes of the file types you would be using.
Zvezdana S.
National Instruments
