It will depend on which VIs you are using.
For example, if you are using the example "DT8x Example LowLevelRealTimeAcquisitionTCPIP.vi"http://www.datataker.com/LabviewDT80/Menus/DT8x%20Low%20Level%20Examples.php
You will need to remove some of the VIs which change the configuration. Remove the VIs, DT8x SetCurrentJob.vi, DT8x StartAcquisitionUsingCurrentJob.vi, and DT8x SetStorageMode.vi.
This should allow you to run the example "DT8x Example LowLevelRealTimeAcquisitionTCPIP.vi" without it changing the program on the DT82.
Let us know if you have any questions.