Ever been partway through a huge download, and Windows sends your PC to sleep, forcing you to start again? We have the answer.
Built for Windows 7 and Vista, Coffee is the answer to your prayers. It monitors a specific network interface, and, if it detects downloading or uploading at a higher rate than the user sets, it prevents the computer from sleeping. Setting the threshold to 0 tells Coffee to stop monitoring.
Once set to run with Windows through the Extra tab, it'll sit in your system tray, making sure you don't suffer from broken downloads again.