The portable vertion 0.18.3 (26.01.2016) displays an error when trying to start it, about a missing msvcr120.dll.
This issue was not present in 0.18.3
OS: Windows 7 x64
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I use only the portable. Not the updater or installer.
Thought you'd like to be imformed of the issue.
From http://quiterss.org/en/download, the 1st in the list.
It is located in the application directory.
I did and it worked, but I was hoping to see a good portable download, so I could keep a full good offline zip.