Client/Server Question

[diffuser78 at gmail.com]

My server.py looks like this

---------------------------------------------CODE----------------------------------
#!/usr/bin/env python
import socket
import sys
import os

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host = ''
port = 2000

s.bind((host,port))
s.listen(1)
conn, addr = s.accept()
print 'client is at', addr

while True:
	data = conn.recv(1000000)
	if (data == 'MaxSim'):
		print 'MaxiSim'
		os.system('notepad')
	elif (data == 'Driving Sim'):
		print 'Driving Sim'
		os.system('explorer')
	elif (data == 'SHUTDOWN'):
		print 'Shutting down...'
		os.system('shutdown -s')
		conn.close()
		break
-------------------------------------------CODE
END-------------------------------------

I am running this above program on a windows machine. My client is a
Linux box. What I want to achieve is that server.py should follows
instructions till I send a 'SHUTDOWN' command upon which it should shut
down.

When I run this program and suppose send 'MaxSim' to it, it launches
notepad.exe fine, but then after that it doesn't accept subsequent
command. I want is that it should accept subsequent commands like
Driving Sim and launch windows explorer etc untill I send a 'SHUTDOWN'
command.

Any help on this, it will be greatly appreciated.