Problem 1. With or without remove prerequisite files, re-download and overwrite the operating environment file.
The operating environment has been downloaded already exists, can run the installation package, covering the downloaded operating environment, is currently not covered. Do not know how to set up, or develop this function option box.
Already selected: Do not remove prerequisite files
Not selected(Show error if the prerequisite is not downloaded correctly),because the runtime environment is XML data is dynamic data.
Problem 2. Do not remove prerequisite files, can search properties can be executed before deleting the downloaded operating environment file.
There is also a problem, If not checked: Already checked: Do not remove prerequisite files, will automatically delete the downloaded operating environment file before the search can be deleted after the search, so you can search the downloaded operating environment file , And then delete it.
All the text is Google translation, I am Chinese do not understand English! Best regards @ Daniel @ Sorin