Prevent deleting a folder during uninstall

Question

Is there any possible way to prevent files in a folder being removed or from over written during re installation? i have a folder where i store some templates for sending mails which user can edit.I have added the basic templates in my setup and so during re installation it removes the templates which the user might have already edited and places a new copy of the template.How can i prevent this?Should i use installer class or is there any property that i can use?Please Guide.

Answer 1

See:

File Versioning Rules (Windows)

Especially:

Neither File Has a Version (Windows)

You are using a tool that makes every single file a key file of it's own components. Therefore, you should already be getting this default behavior. If you set Permanent, they should not get removed. You said that the use "can" modify these files. The behavior is that if they haven't modified the files, they will get overwritten and if they have modified the files they will not.

However, IMO, a better pattern is to have an override directory that users can copy templates to and modify. You can get into undesired behaviors on upgrades resulting from the conflict of 1) My new build fixes something and 2) I can't install it because the old stuff has user data. This is especially true for things like XML files.

Answer 2

this can be done by selecting the file properties and setting the value of permanent to true.