I don't know.I have several Microsoft Visual C++ Redistributable Packages installed on my own computer,the latest one being Microsoft Visual C++ 2010 x86 Redistributable - 10.0.30319.
However,DelZip179.dll is listed as an older version of the .dll on the old Delphizip website.
But then,I'm not sure that applies according to this,though I'm not too sure I follow and understand it completely:
http://en.wikipedia.org/wiki/Side-by-side_assembly
That,I'm not sure on,either.DelZip179.dll is related to the zip files Spybot uses,but why SideBySide is reporting in EventViewer about it when Spybot is closed,I don't know.