os.system() on Windows in Tkinter app spawns console window

[Kevin Walzer]

I'm developing a Tkinter app for a Windows customer, and the app bundles 
several command-line tools (ported from Unix). I call out to these 
console tools from the Tkinter app via os.system(). However, in the 
frozen version of my app, when I call out to these tools, I get multiple 
console windows popping up. This is jarring to say the least. Is there 
any way to run the commands under the hood without the console/DOS 
windows popping up?

--Kevin
-- 
Kevin Walzer
Code by Kevin
http://www.codebykevin.com