1 reply to this topic

[Cemar]

Hello.

I have an applicacion in which a file is going to store user information is included in the installer since the first version of the product. But i don't know how i can save this file in a major upgrade.

I mean, this file is always in the installer, because it is needed in newer installations. But when I install (upgrade) a newer version of the application, I need to upgrade the other files but not this one.

How can i upgrade the applicacion without lossing this file?

Thank you very much!!

Bye
Carlos

[Stefan Krueger]

There are multiple options:
- Move the RemoveExistingProducts action down the sequence, somewhaere after InstallFiles, so that only unneeded files are deleted. In addition, you may need to set the NeverOverwrite property (the file must be key file of the component in this case) if Windows Installer's default versioning rules do't work for you.
- Save the file early in the install, and restore it at the end. MoveFiles can do the first, but not the latetr. So you'll need at least one custom action.