Mail Droid is an application compatible with Android operating system. You can't make it work on the PCs without a proper emulator. On the PC, you will have to install Bluestacks to be able to use Mail Droid. Bluestacks perfectly emulates Android OS and gives you the option of installing Mail Droid.
Download Bluestacks: http://www.bluestacks.com/
Additionally, log-in to the web version of your email to delete those emails.