The QinetiQ G4 application package for windows.

Download it here

The latest version of executables can be downloaded separately

mulassis.exe
SSAT.exe
gemat.exe

You may also need to install a tiny package from MicroSoft:

http://www.microsoft.com/downloads/details.aspx?FamilyID=200B2FD9-AE1A-4A14-984D-389C36F85647&displaylang=en