Leaderboard

I typically save it in the temp directory and delete it. Not the most elegant, but scripting rarely is.

For reference, if you put some data into a DVR, it will continue to exist until: 1) you explicitly release the DVR. 2) the owning VI (the top of the call chain that created the DVR) goes idle (stops). 3) you access the DVR with an IPE structure and change the data. LabVIEW will not destroy/change the data for any other reason. It does not matter if you DVR reference (which is just a number) is in a shift register or not. If you are "losing" your DVR data, you are either doing one of the above three things, or (4) you are losing the DVR reference number somehow. BTW, from your description I would guess that whatever code is receiving your "event" is releasing the DVR. Thus if you make a copy it solves your issue.