We have a number of features that we install, and we call
OnInstall and OnUninstall functions.
During a normal uninstall these functions get called, but
when I do a major upgrade, these functions dont get called.
Here's trace of events:
OnBegin
OnGeneratingMSIScript
OnGeneratedMSIScript
OnMoving
---> binaries gots erased
OnInstallFilesActionsBefore
OnInstallFilesActionsAfter
OnMoved
OnEnd
How can I make OnInstalling,OnInstalled,OnUninstalling,OnUninstalled
functions to be called ?