Forum Moderators: mack
You can't force the option to appear
Not exactly correct. . . but nearly so. It is a real pain to work around the default browser behavior (which is to open the file for if the user has the application installed on their machine), but there are some scripts that can be used to do so. There is a way with php, for instance. But certainly not with straight HTML or simple javascript.
So, for most the best way to keep the file from opening is to provide an alternate zip version.
Of course, there IS one other way built into all browsers that doesn't require ANY additional files or code -- simply include a line instructing your users to RIGHT-click on the link and choose "Save Target As. . . " All depends on what you think is reasonable to expect of the users of the particular web site.