diff --git a/lib/vagrant-hostmanager/hosts_file.rb b/lib/vagrant-hostmanager/hosts_file.rb
index f367c04..5735ded 100644
--- a/lib/vagrant-hostmanager/hosts_file.rb
+++ b/lib/vagrant-hostmanager/hosts_file.rb
@@ -8,10 +8,14 @@ module VagrantPlugins
 
         if (machine.communicate.test("uname -s | grep SunOS"))
           realhostfile = '/etc/inet/hosts'
+		  move_cmd = 'mv'
+        elsif (machine.communicate.test("test -d $Env:SystemRoot"))
+		  realhostfile = 'C:\Windows\System32\Drivers\etc\hosts'
+		  move_cmd = 'mv -force'
         else 
           realhostfile = '/etc/hosts'
+		  move_cmd = 'mv'
         end
-
         # download and modify file with Vagrant-managed entries
         file = @global_env.tmp_path.join("hosts.#{machine.name}")
         machine.communicate.download(realhostfile, file)
@@ -19,7 +23,7 @@ module VagrantPlugins
 
         # upload modified file and remove temporary file
         machine.communicate.upload(file, '/tmp/hosts')
-        machine.communicate.sudo("mv /tmp/hosts #{realhostfile}")
+        machine.communicate.sudo("#{move_cmd} /tmp/hosts #{realhostfile}")
         # i have no idea if this is a windows competibility issue or not, but sometimes it dosen't work on my machine
         begin
           FileUtils.rm(file)