"Git Bash.vbs" takes optional arguments, see the "Git Development
Environment (MSYS Mode)" start menu shortcut. If you pass "MSYS", you
get an MSYS shell :-) The second optional argument is the directory to
start in, very convenient to use from within the file manager of your
choice to start a shell in the currently selected directory. So just
copy that shortcut from teh start menu to where ever you want it to be
able to start an MSYS shell with a double-click :-)
--
Sebastian Schuberth