Ketarin
Open Source
Ketarin is a small application which automatically updates setup packages.
TGUP - The Great Unattended Project
Free Personal
TGUP - The Great Unattended Project is a silent software installer for Windows.
Npackd
Open Source
Npackd an installer/application store/package manager/marketplace for applications for Windows.
Compare Ubuntu Software Center with alternatives
Compare Ketarin and Ubuntu Software Center and decide which is most suitable for you.
Compare Npackd and Ubuntu Software Center and decide which is most suitable for you.
Compare TGUP - The Great Unattended Project and Ubuntu Software Center and decide which is most suitable for you.