install shield limited edition - backup a file and place it after installation mostly at same place

I created setup using install shield limited edition :(

our requirement is whenever the setup is run, if application already exists, need to uninstall, before uninstalling, backup a file and place it after installation at same place

how can 开发者_运维知识库i do this?

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This can be done only through custom actions and it's not supported by InstallShield LE. You can try using a Visual Studio setup project or another setup authoring tool.