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Level 3

file backup before overwrite during upgrade

Is there a way to save off a backup copy of a file before it gets replaced by the new file during an upgrade?

I'm in a Basic MSI project.

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Level 8

Is your requirement not to replace a file during upgrade?
May be you can move this file to a separate feature and decide not to install that feature during upgrade...

Or use MoveFile() to take a backup.
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