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I can not test, but I would actually use a positive look-ahead instead of the capture group. Try this: (foo[\s\S]*?)(?=foo|\z)

Try using a Variant to represent a tree. Make the attributes of the variant also be variants. And so on. You can model a tree of any shape/dimension this way.

Have you turned UAC off through the User Accounts control panel applet?

I have also just started to learn LVOOP. You might find this of particular interest with regard to implementing classes for different instruments: 1) http://zone.ni.com/devzone/cda/epd/p/id/6307 (This is a good white paper and provides examples similar to what I think you are trying to implement). 2) http://vishots.com/hardware-emulation-using-labview-classes/ 3) http://vishots.com/005-visv-labview-class-factory-pattern/ Also the following provide additional resource: 1) http://zone.ni.com/wv/app/doc/p/id/wv-1766 2) http://zone.ni.com/wv/app/doc/p/id/wv-2003 3) https://decibel.ni.com/content/docs/DOC-15014 4) http://zone.ni.com/wv/app/doc/p/id/wv-2820/nextonly/y 1 and 2 provide a very good overview if you are just getting started with LVOOP, 3 and 4 start getting quite involved. I hope this helps Ian

Hi I am not sure I have understanded the question correct. :question: But I am using this little VI in many of my programs, so maybe it can help you. Best regards Christian Download File:post-288-1105534812.vi