We've got a WiX 2.0 based install, and have an upgrade scenario that I'm not
sure how to accomplish. For the new version of the product, the default
(configurable) install directory has changed. When upgrading existing
systems, we need to copy some XML configuration info from the original
install dir to the new install dir. I'm not sure of the best way to
accomplish this. I've considered two options. One is to read the config info
into a property and write it out to a new config file in the new location.
Unfortunately, as far as I can tell the Xml* custom actions don't support
reading XML files, only writing them. The other option is to copy the
existing config file to the new install directory - but I'm not really sure
how to do that in WiX/MSI. Any pointers? Or other approaches to consider?
Thanks,
Kevin
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