Write some Software: Skype launcher

I need a small footprint and simple software, compatible with windows 7 and 8.1 and installed through the usual Install Package. This software must have capability to add multiple Skype accounts (userids + passwords) and option to launch them all when Windows 7 or 8.1 starts. The Skype icons sitting at the Windows 8 taskbar should have customisable colours and display each Skype account name on mouse hover, so as to facilitate the identification of each Skype account. This Skype launcher must have solid and secure programming and encrypt userid and passwords in order to avoid leaks and hacks.