Hello Experts,
I have a simple question about upgrades and a condition I am using.
I have two MSIs A and B. (A is old and B is new)
When I upgrade A with B, A was written a long time ago by someone else and
they mismanaged upgrades, so I am trying to recuperate application generated
files. The installer from A explicitly deletes these files so I created a
CA that backups up the required files before RemoveingExistingFiles is
called and restores them after InstallFinalize, this seems to be working
well, I simply need a confirmation that I am not missing any details for the
future packages.
<Custom Action="CABackupRuntimeFolders"
Before='RemoveExistingProducts'>WIX_UPGRADE_DETECTED AND NOT
(REMOVE="ALL")</Custom>
<Custom Action="CARestoreRuntimeFolders"
After='InstallFinalize'>WIX_UPGRADE_DETECTED AND NOT (REMOVE="ALL")</Custom>
Does this condition makes sense in all scenarios, we only run MajorUpgrades.
I need this CA to run in the current package (B), and not the one being
uninstalled (A). In my case it only gets executed in package B and not A.
When C will exist one day, C will run this CA and not B... and so on.
Thanks for sharing your expertise,
Marc
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