(EncodingSetting): fallback to CP932.

ArcFormats/PkWare/ArcZIP.cs

@@ -186,18 +186,9 @@ namespace GameRes.Formats.PkWare
 
         public override ResourceOptions GetDefaultOptions ()
         {
-            Encoding enc;
-            try
-            {
-                enc = ZipEncoding.Get<Encoding>();
-            }
-            catch
-            {
-                enc = Encodings.cp932;
-            }
             return new ZipOptions {
                 CompressionLevel = Properties.Settings.Default.ZIPCompression,
-                FileNameEncoding = enc,
+                FileNameEncoding = ZipEncoding.Get<Encoding>(),
                 Password = Properties.Settings.Default.ZIPPassword,
             };
         }

ArcFormats/ResourceSettings.cs

@@ -3,7 +3,9 @@
 //! \brief      Persistent resource settings implementation.
 //
 
+using System;
 using System.ComponentModel.Composition;
+using System.Diagnostics;
 using System.Text;
 using GameRes.Formats.Strings;
 
@@ -27,8 +29,20 @@ namespace GameRes.Formats
 
     internal class EncodingSetting : LocalResourceSetting
     {
+        static readonly Encoding DefaultEncoding = Encodings.cp932;
+
         public override object Value {
-            get { return Encoding.GetEncoding ((int)base.Value); }
+            get {
+                try
+                {
+                    return Encoding.GetEncoding ((int)base.Value);
+                }
+                catch // fallback to CP932
+                {
+                    Trace.WriteLine (string.Format ("Unknown encoding code page {0}", base.Value));
+                    return DefaultEncoding;
+                }
+            }
             set { base.Value = ((Encoding)value).CodePage; }
         }