M,
You give it one of the 'windowstyle' arguments. (Check the help under
'Shell' for all the choices and syntax.) What you'd want here is either
vbMinimizedFocus or vbMinimizedNoFocus. Closing automatically I'm not
sure you can do from VBA, but it should be a simple matter (ooh, famous
last words?) to have the Shell statement run a batch file instead of a
single DOS command, and have that batch file end in 'EXIT'.