What is Setup.Msi and how do I get it?

[Skiddish]

Apparently I'm unable to set-up Bonecraft because I need setup.msi which makes no sense to me... I can't download the game without it so if I can get some help I'd be very grateful...

[FastLane]

this is old problem you need Windows Installer 4.5 Redistributable package. http://support.microsoft.com/kb/942288