diff --git a/ArcFormats/ArcNPA.cs b/ArcFormats/ArcNPA.cs
index 9fa08644..d01c4020 100644
--- a/ArcFormats/ArcNPA.cs
+++ b/ArcFormats/ArcNPA.cs
@@ -273,9 +273,16 @@ namespace GameRes.Formats
             return table;
         }
 
+        public override ResourceOptions GetOptions ()
+        {
+            return new ResourceOptions {
+                Widget = new GUI.WidgetNPA()
+            };
+        }
+
         NpaTitleId QueryGameEncryption ()
         {
-            var widget = new GUI.WidgetNPA (KnownSchemes[(int)Settings.Default.NPAScheme]);
+            var widget = new GUI.WidgetNPA();
             var args = new ParametersRequestEventArgs
             {
                 Notice = arcStrings.ArcEncryptedNotice,
diff --git a/ArcFormats/ArcYPF.cs b/ArcFormats/ArcYPF.cs
index cd8c762b..46d5364e 100644
--- a/ArcFormats/ArcYPF.cs
+++ b/ArcFormats/ArcYPF.cs
@@ -55,14 +55,9 @@ namespace GameRes.Formats
                 return new ZLibStream (input, CompressionMode.Decompress);
         }
 
-        uint m_last_key = Settings.Default.YPFKey;
-
         uint QueryEncryptionKey ()
         {
-            uint? key = m_last_key;
-            if (m_last_key > 0xff)
-                key = null;
-            var widget = new GUI.WidgetYPF (key);
+            var widget = new GUI.WidgetYPF();
             var args = new ParametersRequestEventArgs
             {
                 Notice = arcStrings.YPFNotice,
@@ -72,10 +67,9 @@ namespace GameRes.Formats
             if (!args.InputResult)
                 throw new OperationCanceledException();
 
-            key = widget.GetKey();
-            m_last_key = null != key && key.Value < 0x100 ? key.Value : DefaultKey;
-            Settings.Default.YPFKey = m_last_key;
-            return m_last_key;
+            uint last_key = widget.GetKey() ?? DefaultKey;
+            Settings.Default.YPFKey = last_key;
+            return last_key;
         }
 
         private class Parser
@@ -99,9 +93,8 @@ namespace GameRes.Formats
             {
                 uint dir_offset = 0x20;
                 uint dir_remaining = m_dir_size;
-                uint num;
                 var dir = new List<Entry> ((int)m_count);
-                for (num = 0; num < m_count; ++num)
+                for (uint num = 0; num < m_count; ++num)
                 {
                     if (dir_remaining < 0x17)
                         break;
diff --git a/ArcFormats/WidgetINT.xaml b/ArcFormats/WidgetINT.xaml
index a91a5eb9..a4d87351 100644
--- a/ArcFormats/WidgetINT.xaml
+++ b/ArcFormats/WidgetINT.xaml
@@ -2,6 +2,7 @@
       xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
       xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
       xmlns:s="clr-namespace:GameRes.Formats.Strings"
+      xmlns:fmt="clr-namespace:GameRes.Formats"
       xmlns:local="clr-namespace:GameRes.Formats.GUI"
       MaxWidth="260">
     <Grid.Resources>
@@ -52,6 +53,7 @@
     <Label Content="{x:Static s:arcStrings.INTLabelScheme}" Target="{Binding ElementName=EncScheme}"
            Grid.Column="0" Grid.Row="2" HorizontalAlignment="Right"/>
     <ComboBox Name="EncScheme" Grid.Column="1" Grid.Row="2" Margin="0,3,0,0"
+              ItemsSource="{Binding Source={x:Static fmt:IntOpener.KnownSchemes}, Path=Keys, Mode=OneWay}"
               Width="{Binding ElementName=Passkey, Path=ActualWidth}"
               SelectedValue="{Binding Path=Scheme}"/>
 </Grid>
diff --git a/ArcFormats/WidgetINT.xaml.cs b/ArcFormats/WidgetINT.xaml.cs
index ae290412..9338f0e5 100644
--- a/ArcFormats/WidgetINT.xaml.cs
+++ b/ArcFormats/WidgetINT.xaml.cs
@@ -25,7 +25,6 @@ namespace GameRes.Formats.GUI
         {
             InitializeComponent();
             this.DataContext = encryption_info;
-            EncScheme.ItemsSource = IntOpener.KnownSchemes.Keys;
 
             Passphrase.TextChanged += OnPassphraseChanged;
             EncScheme.SelectionChanged += OnSchemeChanged;
diff --git a/ArcFormats/WidgetNPA.xaml b/ArcFormats/WidgetNPA.xaml
index 0a1c9c75..1b8934e9 100644
--- a/ArcFormats/WidgetNPA.xaml
+++ b/ArcFormats/WidgetNPA.xaml
@@ -1,6 +1,10 @@
 <Grid x:Class="GameRes.Formats.GUI.WidgetNPA"
       xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
       xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+      xmlns:fmt="clr-namespace:GameRes.Formats"
+      xmlns:p="clr-namespace:GameRes.Formats.Properties"
       MaxWidth="250">
-    <ComboBox Name="Scheme" Margin="5" Width="180"/>
+    <ComboBox Name="Scheme" Width="180"
+              ItemsSource="{Binding Source={x:Static fmt:NpaOpener.KnownSchemes}, Mode=OneWay}"
+              SelectedIndex="{Binding Source={x:Static p:Settings.Default}, Path=NPAScheme, Mode=TwoWay}"/>
 </Grid>
\ No newline at end of file
diff --git a/ArcFormats/WidgetNPA.xaml.cs b/ArcFormats/WidgetNPA.xaml.cs
index fa092ca6..b3e487a5 100644
--- a/ArcFormats/WidgetNPA.xaml.cs
+++ b/ArcFormats/WidgetNPA.xaml.cs
@@ -1,5 +1,6 @@
 using System.Windows;
 using System.Windows.Controls;
+using GameRes.Formats.Properties;
 
 namespace GameRes.Formats.GUI
 {
@@ -8,11 +9,10 @@ namespace GameRes.Formats.GUI
     /// </summary>
     public partial class WidgetNPA : Grid
     {
-        public WidgetNPA (string scheme)
+        public WidgetNPA ()
         {
             InitializeComponent();
-            Scheme.ItemsSource = NpaOpener.KnownSchemes;
-            Scheme.SelectedItem = scheme;
+            Scheme.SelectedItem = NpaOpener.KnownSchemes[(int)Settings.Default.NPAScheme];
         }
 
         public string GetScheme()
diff --git a/ArcFormats/WidgetXP3.xaml b/ArcFormats/WidgetXP3.xaml
index 42c39421..cabb9bf9 100644
--- a/ArcFormats/WidgetXP3.xaml
+++ b/ArcFormats/WidgetXP3.xaml
@@ -1,6 +1,9 @@
 <Grid x:Class="GameRes.Formats.GUI.WidgetXP3"
       xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
       xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+      xmlns:fmt="clr-namespace:GameRes.Formats.KiriKiri"
+      xmlns:p="clr-namespace:GameRes.Formats.Properties"
       MaxWidth="250">
-    <ComboBox Name="Scheme" Margin="5" Width="180"/>
+    <ComboBox Name="Scheme" ItemsSource="{Binding Source={x:Static fmt:Xp3Opener.KnownSchemes}, Path=Keys, Mode=OneWay}"
+              SelectedValue="{Binding Source={x:Static p:Settings.Default}, Path=XP3Scheme, Mode=TwoWay}" Width="180"/>
 </Grid>
diff --git a/ArcFormats/WidgetXP3.xaml.cs b/ArcFormats/WidgetXP3.xaml.cs
index 6642158a..cec0c168 100644
--- a/ArcFormats/WidgetXP3.xaml.cs
+++ b/ArcFormats/WidgetXP3.xaml.cs
@@ -1,6 +1,9 @@
 using System.Windows;
 using System.Windows.Controls;
 using GameRes.Formats.KiriKiri;
+using GameRes.Formats.Properties;
+using GameRes.Formats.Strings;
+
 
 namespace GameRes.Formats.GUI
 {
@@ -9,16 +12,16 @@ namespace GameRes.Formats.GUI
     /// </summary>
     public partial class WidgetXP3 : Grid
     {
-        public WidgetXP3 (string scheme)
+        public WidgetXP3 ()
         {
             InitializeComponent();
-            Scheme.ItemsSource = Xp3Opener.KnownSchemes.Keys;
-            Scheme.SelectedItem = scheme;
+            if (null == Scheme.SelectedItem)
+                Scheme.SelectedItem = arcStrings.ArcNoEncryption;
         }
 
-        public string GetScheme ()
+        public ICrypt GetScheme ()
         {
-            return Scheme.SelectedItem as string;
+            return Xp3Opener.GetScheme (Scheme.SelectedItem as string);
         }
     }
 }
diff --git a/ArcFormats/WidgetYPF.xaml.cs b/ArcFormats/WidgetYPF.xaml.cs
index b7c42062..94b1d244 100644
--- a/ArcFormats/WidgetYPF.xaml.cs
+++ b/ArcFormats/WidgetYPF.xaml.cs
@@ -1,5 +1,6 @@
 using System.Windows;
 using System.Windows.Controls;
+using GameRes.Formats.Properties;
 
 namespace GameRes.Formats.GUI
 {
@@ -8,11 +9,13 @@ namespace GameRes.Formats.GUI
     /// </summary>
     public partial class WidgetYPF : Grid
     {
-        public WidgetYPF (uint? key)
+        public WidgetYPF ()
         {
             InitializeComponent();
-            if (null != key)
-                this.Passkey.Text = key.Value.ToString();
+
+            uint key = Settings.Default.YPFKey;
+            if (key < 0x100)
+                this.Passkey.Text = key.ToString();
             else
                 this.Passkey.Text = null;
         }
@@ -20,7 +23,7 @@ namespace GameRes.Formats.GUI
         public uint? GetKey ()
         {
             uint key;
-            if (uint.TryParse (this.Passkey.Text, out key))
+            if (uint.TryParse (this.Passkey.Text, out key) && key < 0x100)
                 return key;
             else
                 return null;