(1) Close windows remotely from Linux:

import os os.system("net rpc -S  -U % shutdown -t 1 -f")

(2) Close windows remotely from windows:
(reference)http://code.activestate.com/r...

#!/usr/bin/env python # win32shutdown.py import win32api import win32con import win32netcon import win32security import win32wnet def shutdown(host=None, user=None, passwrd=None, msg=None, timeout=0, force=1, reboot=0): """ Shuts down a remote computer, requires NT-BASED OS. """ # Create an initial connection if a username & password is given. connected = 0 if user and passwrd: try: win32wnet.WNetAddConnection2(win32netcon.RESOURCETYPE_ANY, None, ''.join([r'\', host]), None, user, passwrd) # Don't fail on error, it might just work without the connection. except: pass else: connected = 1 # We need the remote shutdown or shutdown privileges. p1 = win32security.LookupPrivilegeValue(host, win32con.SE_SHUTDOWN_NAME) p2 = win32security.LookupPrivilegeValue(host, win32con.SE_REMOTE_SHUTDOWN_NAME) newstate = [(p1, win32con.SE_PRIVILEGE_ENABLED), (p2, win32con.SE_PRIVILEGE_ENABLED)] # Grab the token and adjust its privileges. htoken = win32security.OpenProcessToken(win32api.GetCurrentProcess(), win32con.TOKEN_ALL_ACCESS) win32security.AdjustTokenPrivileges(htoken, False, newstate) win32api.InitiateSystemShutdown(host, msg, timeout, force, reboot) # Release the previous connection. if connected: win32wnet.WNetCancelConnection2(''.join([r'\', host]), 0, 0) if __name__ == '__main__': # Immediate shutdown. shutdown('salespc1', 'admin', 'secret', None, 0) # Delayed shutdown 30 secs. shutdown('salespc1', 'admin', 'secret', 'Maintenance Shutdown', 30) # Reboot shutdown('salespc1', 'admin', 'secret', None, 0, reboot=1) # Shutdown the local pc shutdown(None, 'admin', 'secret', None, 0)