Insomniate - Insomniate is a highly lightweight application that keeps your PC from going into Sleep/Standby mode.
HakuNeko - HakuNeko is an all-in-one cross-platform utility that supports you to download manga and anime with various website support.
Caffeinated - Caffeinated is a clone of a comparative Mac OSX apparatus called Caffeine and stops your PC going into standby.
Hitomi Downloader - Desktop application to download images/videos/music/text from Hitomi.la and other sites, and more.
Caffeine for Windows - Prevent your computer from going to sleep
HDoujin Downloader - A powerful doujin/manga downloader that supports hundreds of different websites.