diff --git a/.fixtures.yml b/.fixtures.yml
index 7e09776b..845ad562 100644
--- a/.fixtures.yml
+++ b/.fixtures.yml
@@ -1,3 +1,4 @@
 fixtures:
   symlinks:
     registry: "#{source_dir}"
+    mixed_default_settings: "#{source_dir}/spec/fixtures/mixed_default_settings"
diff --git a/lib/puppet_x/puppetlabs/registry.rb b/lib/puppet_x/puppetlabs/registry.rb
index e13ef24e..962ed56b 100644
--- a/lib/puppet_x/puppetlabs/registry.rb
+++ b/lib/puppet_x/puppetlabs/registry.rb
@@ -135,7 +135,7 @@ def canonical
       # preserve the trailing backslash for the provider, otherwise it won't
       # think this is a default value.
       if default?
-        filter_path[:canonical] << "\\"
+        filter_path[:canonical] + "\\"
       else
         filter_path[:canonical]
       end
@@ -156,6 +156,16 @@ def valuename
     def default?
       !!filter_path[:is_default]
     end
+
+    def filter_path
+      result = super
+
+      # It's possible to pass in a path of 'hklm' which can still be parsed, but is not valid registry key.  Only the default value 'hklm\'
+      # and named values 'hklm\something' are allowed
+      raise ArgumentError, "Invalid registry key: #{path}" if result[:trailing_path].empty? && result[:valuename].empty? && !result[:is_default]
+
+      result
+    end
   end
 end
 end
diff --git a/spec/classes/mixed_default_settings_spec.rb b/spec/classes/mixed_default_settings_spec.rb
new file mode 100644
index 00000000..23adcafd
--- /dev/null
+++ b/spec/classes/mixed_default_settings_spec.rb
@@ -0,0 +1,25 @@
+require 'spec_helper'
+
+# The manifest used for testing, is located in spec/fixtures/mixed_default_settings/manifests/init.pp
+
+# This test is to ensure that the way of setting default values (trailing slash) compiles correctly
+# when there is a similar looking path in the manifest. It mixes default and non-default value_names in the same manifest
+#
+# This manifest attempts to manage two registry values
+#
+# + HKLM
+#     + Software
+#         - foo                  <-- This is a value called 'foo' in the 'HKLM\Sofware' key.
+#         |                          This is the 'hklm\Software\foo' resource
+#         |
+#         + foo
+#             + (default value)  <-- This is the default value for a key called 'HKLM\Software\foo'.
+#                                    This is the 'hklm\Software\foo\\' resource
+#
+
+describe 'mixed_default_settings' do
+  it { is_expected.to compile }
+
+  it { is_expected.to contain_registry_value('hklm\Software\foo\\') }
+  it { is_expected.to contain_registry_value('hklm\Software\foo') }
+end
diff --git a/spec/fixtures/mixed_default_settings/manifests/init.pp b/spec/fixtures/mixed_default_settings/manifests/init.pp
new file mode 100644
index 00000000..57ac7f4c
--- /dev/null
+++ b/spec/fixtures/mixed_default_settings/manifests/init.pp
@@ -0,0 +1,13 @@
+class mixed_default_settings {
+  registry_value { 'hklm\Software\foo\\':
+    ensure => present,
+    type   => string,
+    data   => 'default',
+  }
+
+  registry_value { 'hklm\Software\foo':
+    ensure => present,
+    type   => string,
+    data   => 'nondefault',
+  }
+}
diff --git a/spec/unit/puppet/provider/registry_value_spec.rb b/spec/unit/puppet/provider/registry_value_spec.rb
index 3b6f612f..fdd5255f 100644
--- a/spec/unit/puppet/provider/registry_value_spec.rb
+++ b/spec/unit/puppet/provider/registry_value_spec.rb
@@ -51,7 +51,12 @@
 
   describe "#exists?" do
     it "should return true for a well known hive" do
-      reg_value = type.new(:path => 'hklm\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareType', :provider => described_class.name)
+      reg_value = type.new(:title => 'hklm\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareType', :provider => described_class.name)
+      reg_value.provider.exists?.should be true
+    end
+
+    it "should return true for a well known hive with mixed case name" do
+      reg_value = type.new(:title => 'hklm\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareType'.upcase, :provider => described_class.name)
       reg_value.provider.exists?.should be true
     end
 
@@ -82,6 +87,7 @@
   end
 
   describe "#destroy" do
+    let (:default_path) { path = "hklm\\#{puppet_key}\\#{subkey_name}\\" }
     let (:path) { path = "hklm\\#{puppet_key}\\#{subkey_name}\\#{SecureRandom.uuid}" }
     def create_and_destroy(path, reg_type, data)
       reg_value = type.new(:path => path,
@@ -102,6 +108,10 @@ def create_and_destroy(path, reg_type, data)
       reg_value.provider.exists?.should be false
     end
 
+    it "can destroy a randomly created default REG_SZ value" do
+      create_and_destroy(default_path, :string, SecureRandom.uuid)
+    end
+
     it "can destroy a randomly created REG_SZ value" do
       create_and_destroy(path, :string, SecureRandom.uuid)
     end
diff --git a/spec/unit/puppet/type/registry_key_spec.rb b/spec/unit/puppet/type/registry_key_spec.rb
index dd90ca90..13b8bf09 100644
--- a/spec/unit/puppet/type/registry_key_spec.rb
+++ b/spec/unit/puppet/type/registry_key_spec.rb
@@ -39,7 +39,7 @@
         key[:path] = path
       end
     end
-    
+
     %w[hku hku\.DEFAULT hku\.DEFAULT\software hku\.DEFAULT\software\vendor].each do |path|
       it "should accept #{path}" do
         key[:path] = path
@@ -110,6 +110,18 @@
         res[:path].must == "#{key[:path]}\\val3"
       end
 
+      it "should purge existing values that are not being managed and case insensitive)" do
+        pending("eval_generate is currently not case insensitive, but should be")
+        key.provider.expects(:values).returns(['VAL1', 'VaL\3', 'Val99'])
+        resources = key.eval_generate
+        resources.count.must == 1
+        res = resources.first
+
+        res[:ensure].must == :absent
+        res[:path].must == key[:path]
+        res[:value_name].must == 'Val99'
+      end
+
       it "should return an empty array if all existing values are being managed" do
         key.provider.expects(:values).returns(['val1', 'val2'])
         key.eval_generate.must be_empty
@@ -117,7 +129,7 @@
     end
   end
 
-  describe "#autorequire" do
+  describe "resource aliases" do
     let :the_catalog do
       Puppet::Resource::Catalog.new
     end
diff --git a/spec/unit/puppet/type/registry_value_spec.rb b/spec/unit/puppet/type/registry_value_spec.rb
index 03deb1c7..3500976d 100644
--- a/spec/unit/puppet/type/registry_value_spec.rb
+++ b/spec/unit/puppet/type/registry_value_spec.rb
@@ -17,7 +17,7 @@
 
   describe "path parameter" do
     it "should have a path parameter" do
-      Puppet::Type.type(:registry_key).attrtype(:path).should == :param
+      Puppet::Type.type(:registry_value).attrtype(:path).should == :param
     end
 
     %w[hklm\propname hklm\software\propname].each do |path|
@@ -33,7 +33,9 @@
     end
 
     it "should strip trailling slashes from unnamed values" do
-      described_class.new(:path => 'hklm\\software\\\\', :catalog => catalog)
+      value = described_class.new(:path => 'hklm\\software\\\\', :catalog => catalog)
+
+      expect(value[:path]).to eq('hklm\\software\\')
     end
 
     %w[HKEY_DYN_DATA\\ HKEY_PERFORMANCE_DATA\name].each do |path|
@@ -44,8 +46,7 @@
 
     %w[hklm hkcr unknown\\name unknown\\subkey\\name].each do |path|
       it "should reject #{path} as invalid" do
-        pending 'wrong message'
-        expect { described_class.new(:path => path, :catalog => catalog) }.should raise_error(Puppet::Error, /Invalid registry key/)
+        expect { described_class.new(:path => path, :catalog => catalog) }.to raise_error(Puppet::Error, /Invalid registry key/)
       end
     end
 
@@ -60,12 +61,55 @@
     it 'should validate the length of the value data'
     it 'should be case-preserving'
     it 'should be case-insensitive'
-    it 'should autorequire ancestor keys'
     it 'should support 32-bit values' do
       value = described_class.new(:path => '32:hklm\software\foo', :catalog => catalog)
     end
   end
 
+  describe '#autorequire' do
+    let(:subject) { described_class.new(:title => subject_title, :catalog => catalog) }
+    [
+      {
+        :context                => 'with a non-default value_name',
+        :reg_value_title        => 'hklm\software\foo\bar',
+        :expected_reg_key_title => 'hklm\Software\foo',
+      },
+      {
+        :context                => 'with a mixed case path and value_name',
+        :reg_value_title        => 'hkLm\soFtwarE\fOo\Bar',
+        :expected_reg_key_title => 'hklm\Software\foo',
+      },
+      {
+        :context                => 'with a default value_name',
+        :reg_value_title        => 'hklm\software\foo\bar\\',
+        :expected_reg_key_title => 'hklm\Software\foo\bar',
+      },
+      {
+        :context                => 'with a value whose parent key is not managed but does have an ancestor key in the catalog',
+        :reg_value_title        => 'hklm\software\foo\bar\baz\alice',
+        :expected_reg_key_title => 'hklm\Software\foo\bar',
+      }
+    ].each do |testcase|
+      context testcase[:context] do
+        let(:subject) { described_class.new(:title => testcase[:reg_value_title], :catalog => catalog) }
+
+        it 'should not autorequire ancestor keys if none exist' do
+          expect(subject.autorequire).to eq([])
+        end
+
+        it 'should only autorequire the nearest ancestor registry_key resource' do
+          catalog.add_resource(Puppet::Type.type(:registry_key).new(:path => 'hklm\Software', :catalog => catalog))
+          catalog.add_resource(Puppet::Type.type(:registry_key).new(:path => 'hklm\Software\foo', :catalog => catalog))
+          catalog.add_resource(Puppet::Type.type(:registry_key).new(:path => 'hklm\Software\foo\bar', :catalog => catalog))
+
+          autorequire_array = subject.autorequire
+          expect(autorequire_array.count).to eq(1)
+          expect(autorequire_array[0].to_s).to eq("Registry_key[#{testcase[:expected_reg_key_title]}] => Registry_value[#{testcase[:reg_value_title]}]")
+        end
+      end
+    end
+  end
+
   describe "type property" do
     let (:value) { described_class.new(:path => 'hklm\software\foo', :catalog => catalog) }