Kill sshd before install/upgrades

WAPT/control

@@ -1,5 +1,5 @@
 package           : fws-openssh
-version           : 7.7.2.0-2
+version           : 7.7.2.0-3
 architecture      : all
 section           : base
 priority          : optional

setup.py

@@ -9,6 +9,7 @@ def install():
     mkdirs(makepath(programfiles,'OpenSSH'))
     print('    Stoping the service')
     run_notfatal(r'sc stop sshd')
+    killalltasks('sshd.exe')
     print('    Extract OpenSSH archive')
     run('"%s" e -y -o"%s" OpenSSH-Win%s.zip' % (makepath(programfiles,'7-Zip','7z.exe'),makepath(programfiles,'OpenSSH'),'64' if iswin64() else '32'))
     print('    Installing the service')