Question: I had a program `msfeedssync.exe` as a scheduled task on my machine.

Wondering what is this for and how did it get scheduled on my Windows 7 machine?

Answer: 
What is Msfeedssync.exe: 
It is the Microsoft Feeds Synchronization task found on PCs with Internet Explorer and which automatic RSS Feeds synchronization turned ON. This task starts up at the intervals specified in Internet Explorer and checks for updates to your RSS feeds. Once it has updated your RSS feeds, it terminates.

How to disable it: 
Control Panel > Internet Options > Content(tab) > Feeds and Web Slices > Settings(button)

From here: <https://groups.google.com/d/msg/microsoft.public.internetexplorer.general/6wAVjHlHPns/8ZrnUriDgQ8J>
It is supposed to be the RSS feed updater for IE / whatever you're using RSS feeds for. There is also a little virus going around camoflaging msfeedssync.exe, so make sure that the scheduled task resides in a folder such as /system32. If you're not using any feeds, it's okay to disable this task.