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Yeah, the top two slots in my roundup come from the same company. That's how awesome Ninite is.
Ninite Updater is a separate program that you can run on any Windows PC, regardless of whether you used the Ninite installer or not.
It's a super-lightweight standalone utility that runs in the background and alerts you when updates are available for any of the programs it monitors. That includes widely used programs that are common targets of malware authors, like Flash, Adobe Reader, and Java.
The tray icon turns from green to red when updates are available. Click the red icon to display a list of all programs that have an update available. Click the Update button to immediately download the update packages and install them silently , with no pestering of any kind.
The program isn't free—it's $9.99 for one PC for a year, with family packs available at significant discounts ($50 for 10 PCs, which don't have to be in one location). If you support a business network, try Ninite Pro.