As long as you enter an existing string, the tool will not prompt you with any kind of window or even require your password. The reason it does this is so that you may share the data with other applications without acquiring any security risks.
Another option is to enter the string you want to protect, and having the tool encrypt it, you may just right-click on the generated file and save it. This ensures that you save the proper file whenever you want to keep your text safe, while 6add127376