diff --git a/lib/vagrant/action/vm/network.rb b/lib/vagrant/action/vm/network.rb
index f886f079314..49359714dcd 100644
--- a/lib/vagrant/action/vm/network.rb
+++ b/lib/vagrant/action/vm/network.rb
@@ -8,10 +8,6 @@ def initialize(app, env)
           @app = app
           @env = env
 
-          if enable_network? && Util::Platform.windows? && Util::Platform.bit64?
-            raise Errors::NetworkNotImplemented
-          end
-
           env[:vm].config.vm.network_options.compact.each do |network_options|
             raise Errors::NetworkCollision if !verify_no_bridge_collision(network_options)
           end
@@ -42,17 +38,8 @@ def call(env)
         # Verifies that there is no collision with a bridged network interface
         # for the given network options.
         def verify_no_bridge_collision(net_options)
-          interfaces = VirtualBox::Global.global.host.network_interfaces
-          interfaces.each do |ni|
-            next if ni.interface_type == :host_only
-
-            result = if net_options[:name]
-              true if net_options[:name] == ni.name
-            else
-              true if matching_network?(ni, net_options)
-            end
-
-            return false if result
+          @env[:vm].driver.read_bridged_interfaces.each do |interface|
+            return false if matching_network?(interface, net_options)
           end
 
           true
@@ -67,51 +54,75 @@ def enable_network?
         def assign_network
           @env[:ui].info I18n.t("vagrant.actions.vm.network.preparing")
 
+          networks = @env[:vm].driver.read_host_only_interfaces
+          adapters = []
+
+          # Build the networks and the list of adapters we need to enable
           @env[:vm].config.vm.network_options.compact.each do |network_options|
-            adapter = @env["vm"].vm.network_adapters[network_options[:adapter]]
-            adapter.enabled = true
-            adapter.attachment_type = :host_only
-            adapter.host_only_interface = network_name(network_options)
-            adapter.mac_address = network_options[:mac].gsub(':', '') if network_options[:mac]
-            adapter.save
+            network = find_matching_network(networks, network_options)
+
+            if !network
+              # It is an error case if a specific name was given but the network
+              # doesn't exist.
+              if network_options[:name]
+                raise Errors::NetworkNotFound, :name => network_options[:name]
+              end
+
+              # Otherwise, we create a new network and put the net network
+              # in the list of available networks so other network definitions
+              # can use it!
+              network = create_network(network_options)
+              networks << network
+            end
+
+            adapters << {
+              :adapter  => network_options[:adapter] + 1,
+              :type     => :hostonly,
+              :hostonly => network[:name],
+              :mac_address => network_options[:mac]
+            }
           end
+
+          # Enable the host only adapters!
+          @env[:vm].driver.enable_adapters(adapters)
         end
 
-        # Returns the name of the proper host only network, or creates
-        # it if it does not exist. Vagrant determines if the host only
-        # network exists by comparing the netmask and the IP.
-        def network_name(net_options)
-          # First try to find a matching network
-          interfaces = VirtualBox::Global.global.host.network_interfaces
-          interfaces.each do |ni|
-            # Ignore non-host only interfaces which may also match,
-            # since they're not valid options.
-            next if ni.interface_type != :host_only
-
-            if net_options[:name]
-              return ni.name if net_options[:name] == ni.name
-            else
-              return ni.name if matching_network?(ni, net_options)
+        # This looks through a list of available host only networks and
+        # finds a matching network.
+        #
+        # If one is not available, `nil` is returned.
+        def find_matching_network(networks, needle_options)
+          networks.each do |network|
+            if needle_options[:name] && needle_options[:name] == network[:name]
+              return network
+            elsif matching_network?(network, needle_options)
+              return network
             end
           end
 
-          raise Errors::NetworkNotFound, :name => net_options[:name] if net_options[:name]
-
-          # One doesn't exist, create it.
-          @env[:ui].info I18n.t("vagrant.actions.vm.network.creating")
+          nil
+        end
 
-          ni = interfaces.create
-          ni.enable_static(network_ip(net_options[:ip], net_options[:netmask]),
-                           net_options[:netmask])
-          ni.name
+        # Creates a host only network with the given options and returns
+        # the hash of the options it was created with.
+        #
+        # @return [Hash]
+        def create_network(network_options)
+          # Create the options for the host only network, specifically
+          # figuring out the host only network IP based on the netmask.
+          options = network_options.merge({
+            :ip => network_ip(network_options[:ip], network_options[:netmask])
+          })
+
+          @env[:vm].driver.create_host_only_network(options)
         end
 
         # Tests if a network matches the given options by applying the
         # netmask to the IP of the network and also to the IP of the
         # virtual machine and see if they match.
         def matching_network?(interface, net_options)
-          interface.network_mask == net_options[:netmask] &&
-            apply_netmask(interface.ip_address, interface.network_mask) ==
+          interface[:netmask] == net_options[:netmask] &&
+            apply_netmask(interface[:ip], interface[:netmask]) ==
             apply_netmask(net_options[:ip], net_options[:netmask])
         end
 
diff --git a/lib/vagrant/driver/virtualbox.rb b/lib/vagrant/driver/virtualbox.rb
index a9fb9590fae..ca8cbaab9c1 100644
--- a/lib/vagrant/driver/virtualbox.rb
+++ b/lib/vagrant/driver/virtualbox.rb
@@ -47,6 +47,25 @@ def clear_shared_folders
         end
       end
 
+      # Creates a host only network with the given options.
+      def create_host_only_network(options)
+        # Create the interface
+        execute("hostonlyif", "create") =~ /^Interface '(.+?)' was successfully created$/
+        name = $1.to_s
+
+        # Configure it
+        execute("hostonlyif", "ipconfig", name,
+                "--ip", options[:ip],
+                "--netmask", options[:netmask])
+
+        # Return the details
+        return {
+          :name => name,
+          :ip   => options[:ip],
+          :netmask => options[:netmask]
+        }
+      end
+
       # This deletes the VM with the given name.
       def delete
         execute("unregistervm", @uuid, "--delete")
@@ -79,6 +98,26 @@ def execute_command(command)
         raw(*command)
       end
 
+      # Enables network adapters on this virtual machine.
+      def enable_adapters(adapters)
+        args = []
+        adapters.each do |adapter|
+          args.concat(["--nic#{adapter[:adapter]}", adapter[:type].to_s])
+
+          if adapter[:hostonly]
+            args.concat(["--hostonlyadapter#{adapter[:adapter]}",
+                         adapter[:hostonly]])
+          end
+
+          if adapter[:mac_address]
+            args.concat(["--macaddress#{adapter[:adapter]}",
+                         adapter[:mac_address]])
+          end
+        end
+
+        execute("modifyvm", @uuid, *args)
+      end
+
       # Forwards a set of ports for a VM.
       #
       # This will not affect any previously set forwarded ports,
@@ -173,6 +212,47 @@ def read_guest_additions_version
         return nil
       end
 
+      # This reads the list of host only networks.
+      def read_bridged_interfaces
+        execute("list", "bridgedifs").split("\n\n").collect do |block|
+          info = {}
+
+          block.split("\n").each do |line|
+            if line =~ /^Name:\s+(.+?)$/
+              info[:name] = $1.to_s
+            elsif line =~ /^IPAddress:\s+(.+?)$/
+              info[:ip] = $1.to_s
+            elsif line =~ /^NetworkMask:\s+(.+?)$/
+              info[:netmask] = $1.to_s
+            elsif line =~ /^Status:\s+(.+?)$/
+              info[:status] = $1.to_s
+            end
+          end
+
+          # Return the info to build up the results
+          info
+        end
+      end
+
+      # Reads and returns the available host only interfaces.
+      def read_host_only_interfaces
+        execute("list", "hostonlyifs").split("\n\n").collect do |block|
+          info = {}
+
+          block.split("\n").each do |line|
+            if line =~ /^Name:\s+(.+?)$/
+              info[:name] = $1.to_s
+            elsif line =~ /^IPAddress:\s+(.+?)$/
+              info[:ip] = $1.to_s
+            elsif line =~ /^NetworkMask:\s+(.+?)$/
+              info[:netmask] = $1.to_s
+            end
+          end
+
+          info
+        end
+      end
+
       # This reads the folder where VirtualBox places it's VMs.
       def read_machine_folder
         execute("list", "systemproperties").split("\n").each do |line|
diff --git a/lib/vagrant/errors.rb b/lib/vagrant/errors.rb
index 7d1b099cc71..25d0ab77997 100644
--- a/lib/vagrant/errors.rb
+++ b/lib/vagrant/errors.rb
@@ -208,13 +208,6 @@ class NetworkNotFound < VagrantError
       error_key(:not_found, "vagrant.actions.vm.network")
     end
 
-    # Note: This is a temporary error for Windows users while host-only
-    # networking doesn't quite work.
-    class NetworkNotImplemented < VagrantError
-      status_code(49)
-      error_key(:windows_not_implemented, "vagrant.actions.vm.network")
-    end
-
     class NFSHostRequired < VagrantError
       status_code(31)
       error_key(:host_required, "vagrant.actions.vm.nfs")
diff --git a/templates/locales/en.yml b/templates/locales/en.yml
index 0e9550bc5f6..fdec49ede03 100644
--- a/templates/locales/en.yml
+++ b/templates/locales/en.yml
@@ -397,11 +397,6 @@ en:
             host only network for you. Alternatively, please create the
             specified network manually.
           preparing: "Preparing host only network..."
-          windows_not_implemented: |-
-            Host only networking is currently broken on Windows due to a bug
-            in jruby-win32ole. When the bug is fixed, a patch release for Vagrant
-            will be released to remove this error. Until then, please just use
-            forwarded ports.
         nfs:
           host_required: |-
             A host class is required for NFS shared folders. By default, these