Win32 blocking spawn

[Paul Prescod]

I need to run a command line app from a Windows program.
I need the command line app to come up hidden or at least in a minimized
window (so I don't think that I can use os.system).
I need my program to block until it is done (so I don't think that I can
use ShellExecute or WinExec)

I've got some gross options that involve polling etc. Anybody know
anything better? Thanks,
-- 
 Paul Prescod  - ISOGEN Consulting Engineer speaking for only himself
 http://itrc.uwaterloo.ca/~papresco

"It's only a movie. People should get a life." 
 - George Lucas (http://www.nypost.com/news/9025.htm)