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The section "Distributing VIs" in chapter 12 of the LabVIEw User Manual covers this. In order to be upgraded, the VI must have the diagram (or "source code"). If you have third party VIs without diagrams, you'll hve to request an upgrade. If these are VIs you created yourself, the way to avoid the problem in the future and still protect your code is to use password protection instead of saving without diagrams.
On Thu, 18 Apr 2002 10:00:11 -0700 (PDT), Labview General wrote: > Why New release doesn't 100% compatible with old release, is that > something changing at base?
Yes. there are many revisions in LabVIEW as it develops. Most notably with the resources that new versions require that old versions don't support. Most versions of LabVIEW now support saving code into older formats and all formats are foward compiled into the latest version (sometimes via some intermediate versions).
