问题
When installing my software I need to take care another msi package is uninstalled before. Is this possible? Can burn do this for me?
回答1:
MSI / Major Upgrade: You can add entries to the Upgrade table in one or all of the MSI files you install. Then the older / other MSI will be uninstalled before (or after) your MSI is installed. This is MSI's built in "major upgrade" feature intended to deliver upgrades for your own products, but you can uninstall any product you want that is MSI-based - even a competitive product - only if you are nuts, and do call legal first :-). Maybe see this description (related problem at least): Adding entries to MSI UpgradeTable to remove related products.
Burn: Burn can run EXE files that can initiate uninstall of pre-existing MSI files, but I would never choose this approach when you can use the above built-in MSI approach instead. I am not sure if you can call msiexec.exe directly via the ExePackage element of Burn, but you trigger the uninstall from within a custom made EXE file in a myriad of ways: Uninstalling an MSI file from the command line without using msiexec. It depends what your EXE is written in. If it is managed code, maybe use the DTF method (option 6 in the linked answer). If it is C++, maybe use the MSI API Win32 functions. See option 14 in the linked answer. I guess you can also chose to shell out to msiexec.exe (option 3). My advice: always go native code for deployment. Your setup must work on any machine, in any language, in any state and in any OS edition. There are many further variables. Minimal dependencies is the only cure.
来源：https://stackoverflow.com/questions/53522088/remove-other-software-on-installation