Include Visual Studio C++ Redistributable Package
If you attempt to install 7+ Taskbar Tweaker on a fresh Windows 7 Professional SP1 system, it will not work. You need to include the Visual Studio C++ Redistributable Package with your installation package.
AdminRaMMicHaeL (Admin, moved) commented
I don't have a fresh Windows 7 to test on, but I'm pretty sure these Redistributable Package aren't needed. The installer imports nothing but standard system libraries.