In this dialog you can specify a file version that will be used during the installation to determine the install and overwrite priority. Note that this version will not affect in any way the file's internal version.
Get from file
The file has the default version, if it has one.
You can specify the version for the file. The default value is 1.0.
Make companion of file
You can set the file to be companion for another installed file. Use thebutton to choose one.
If you choose this option, the installation of a companion file doesn't depend on its own file versioning information, but on the versioning of its companion parent.
This option is not available for the files that are key path in a component because the key path file versioning logic would be determined by the companion parent file.