安装/部署项目：防止在卸载时删除已修改的文件

Question

I have a setup project. If the user modifies one of the installed files and then un-installs the application, I'd like the file to NOT get deleted by the uninstall (so that when the user re-installs later, the modified file is used rather than the default one that the installer would normally use). Is this at all possible?

Note: Files which have not been edited should be applicable for upgrades/removal.

Answer 1

To prevent uninstall you should mark the files' component as Permanent

http://msdn.microsoft.com/en-us/library/windows/desktop/aa368007(v=vs.85).aspx

Answer 2

由于在卸载时无法阻止安装项目删除已修改的文件，因此我发现的最佳方法（如Ciprian所述）是创建一个自定义操作，在卸载之前备份修改后的文件，并在另一个自定义中恢复它们之后的行动。