diff --git a/ChanSort.Api/ChanSort.Api.csproj b/ChanSort.Api/ChanSort.Api.csproj
index 7557e6c..05552f8 100644
--- a/ChanSort.Api/ChanSort.Api.csproj
+++ b/ChanSort.Api/ChanSort.Api.csproj
@@ -84,6 +84,7 @@
       <DesignTime>True</DesignTime>
       <DependentUpon>Resources.resx</DependentUpon>
     </Compile>
+    <Compile Include="Utils\DependencyChecker.cs" />
     <None Include="Utils\ChannelMappingBase.cs" />
     <Compile Include="Utils\BrowserHelper.cs" />
     <Compile Include="Utils\DataMapping.cs" />
diff --git a/ChanSort.Api/Utils/DependencyChecker.cs b/ChanSort.Api/Utils/DependencyChecker.cs
new file mode 100644
index 0000000..21dad11
--- /dev/null
+++ b/ChanSort.Api/Utils/DependencyChecker.cs
@@ -0,0 +1,21 @@
+using System;
+using System.IO;
+
+namespace ChanSort.Api
+{
+  public static class DepencencyChecker
+  {
+    public static bool IsVc2010RedistPackageX86Installed()
+    {
+      object value = Microsoft.Win32.Registry.GetValue(@"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VisualStudio\10.0\VC\VCRedist\x86",
+                                        "Installed", null);
+      return value != null && Convert.ToInt32(value) == 1;
+    }
+
+    public static void AssertVc2010RedistPackageX86Installed()
+    {
+      if (!IsVc2010RedistPackageX86Installed())
+        throw new FileLoadException("Please download and install the Microsoft Visual C++ 2010 Redistributable Package (x86)");
+    }
+  }
+}
diff --git a/ChanSort.Loader.Panasonic/Serializer.cs b/ChanSort.Loader.Panasonic/Serializer.cs
index 7c95c73..6dc50d1 100644
--- a/ChanSort.Loader.Panasonic/Serializer.cs
+++ b/ChanSort.Loader.Panasonic/Serializer.cs
@@ -302,6 +302,8 @@ namespace ChanSort.Loader.Panasonic
     #region ctor()
     public Serializer(string inputFile) : base(inputFile)
     {
+      DepencencyChecker.AssertVc2010RedistPackageX86Installed();      
+
       this.Features.ChannelNameEdit = true;
       this.DataRoot.SortedFavorites = true;
       
diff --git a/ChanSort.Loader.Toshiba/DbSerializer.cs b/ChanSort.Loader.Toshiba/DbSerializer.cs
index 41aaffb..e957828 100644
--- a/ChanSort.Loader.Toshiba/DbSerializer.cs
+++ b/ChanSort.Loader.Toshiba/DbSerializer.cs
@@ -27,6 +27,8 @@ namespace ChanSort.Loader.Toshiba
     #region ctor()
     public DbSerializer(string inputFile) : base(inputFile)
     {
+      DepencencyChecker.AssertVc2010RedistPackageX86Installed();      
+
       this.Features.ChannelNameEdit = true;
 
       this.DataRoot.AddChannelList(this.atvChannels);
diff --git a/ChanSort/MainForm.cs b/ChanSort/MainForm.cs
index 707843d..634848a 100644
--- a/ChanSort/MainForm.cs
+++ b/ChanSort/MainForm.cs
@@ -25,7 +25,7 @@ namespace ChanSort.Ui
 {
   public partial class MainForm : XtraForm
   {
-    public const string AppVersion = "v2013-07-19.3";
+    public const string AppVersion = "v2013-07-22";
 
     private const int MaxMruEntries = 5;
 
@@ -153,11 +153,11 @@ namespace ChanSort.Ui
         dlg.FilterIndex = numberOfFilters + 1;
         dlg.CheckFileExists = true;
         dlg.RestoreDirectory = true;
-        if (dlg.ShowDialog() == DialogResult.OK)
-        {
-          var plugin = dlg.FilterIndex <= this.plugins.Count ? this.plugins[dlg.FilterIndex - 1] : null;
-          this.LoadFiles(plugin, dlg.FileName);
-        }
+        if (dlg.ShowDialog() != DialogResult.OK)
+          return;
+
+        var plugin = dlg.FilterIndex <= this.plugins.Count ? this.plugins[dlg.FilterIndex - 1] : null;
+        this.LoadFiles(plugin, dlg.FileName);        
       }
     }
     #endregion
diff --git a/makeDistribZip.cmd b/makeDistribZip.cmd
index 8728e77..d96b006 100644
--- a/makeDistribZip.cmd
+++ b/makeDistribZip.cmd
@@ -13,6 +13,7 @@ copy DLL\* "%target%"
 del "%target%\*nunit*.dll"
 mkdir "%target%\de" 2>nul
 xcopy /siy debug\de "%target%\de"
+xcopy /siy debug\pt "%target%\pt"
 copy readme.txt "%target%"
 for %%f in (Utils Data XtraEditors XtraBars XtraGrid XtraLayout) do call :copyDll %%f
 
diff --git a/readme.txt b/readme.txt
index 9d0d7ee..1a7b375 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,21 +1,9 @@
-Version v2013-07-19.3 ====================================================
+Version v2013-07-22 ======================================================
 
 Changes:
-- FIX: .NET Framework 4.0 exceptions about loading DLLs downloaded from
-  the web (since the whole .zip was downloaded from the web)
-- FIX: Samsung "CablePrime" channel list was not updated/saved
-- FIX: Deleted Samsung analog, DVB-T and DVB-C channels re-appeared in the
-  channel list after loading the file again.
-- Supports Panasonic "svl.bin" channel lists for different TV CPUs
-  (auto-detecting big-endian or little-endian byte order).
-- *.csv reference list is no longer created automatically. (You can always
-  use your TV data file as a reference list anyway)
-- File / Save reference list... now opens a dialog which allows to save in
-  either ChanSort *.csv or SamToolBox *.chl format.
-  (The *.chl format only contains the currently selected list, so it can be
-  used to duplicate the order from e.g. the "Astra HD+" to the "Satellite"
-  list within the same *.scm file)
-- Upgraded to .NET Framework 4.0  and DevExpress 13.1 libraries
+- Display message box to install VC++ 2010 Redist Package (x86) when it is
+  missing (required by SQLite to load Panasonic and Toshiba lists)
+- FIX: added missing files for Portuguese translation
 
 The complete change log can be found at the end of this document
 
@@ -67,7 +55,7 @@ LG
     
     Instructions on how to access the hidden service-menu for transferring
     the channel list from/to USB can be found here:
-    https://sourceforge.net/p/chansort/wiki/Home/
+    http://sourceforge.net/p/chansort/wiki/Home/
 
 Panasonic
 -------
@@ -90,13 +78,19 @@ format there is a chance of unwanted side-effects or damage to your TV.
 
 System requirements =======================================================
 
-- USB-Stick to transfer the channel list between your TV and PC
+- Microsoft .NET Framework 4.0 (included in Win8, can be installed manually
+  on Windows 7, Windows Vista, Windows XP SP3):
+  http://www.microsoft.com/en-us/download/details.aspx?id=17851
+- Microsoft Visual C++ 2010 Redistributable Package (x86)
+  Required to edit Panasonic and Toshiba channel lists (through SQLite)
+  http://www.microsoft.com/en-us/download/details.aspx?id=8328
+- USB-stick to transfer the channel list between your TV and PC
+  (for Panasonic an SD-Card is needed instead of a USB-stick)
 - For LG's LM-series you need a programmable remote control to access the 
   service menu for transferring the list to/from USB. 
   (e.g. Logitech Harmony 300, One-For-All URC3920,...)
   Details can be found on the ChanSort wiki and on 
   http://openlgtv.org.ru/wiki/index.php/Access_hidden_service_menus_/_modes
-- Microsoft .NET Framework 3.5 (included in WinXP SP3, Vista, Win7, Win8)
 
 
 License ===============================================================
@@ -115,6 +109,11 @@ OTHER DEALINGS IN THE SOFTWARE.
 
 Change log ================================================================
 
+2013-07-22
+- Display message box to install VC++ 2010 Redist Package (x86) when it is
+  missing (required by SQLite to load Panasonic and Toshiba lists)
+- FIX: added missing files for Portuguese translation
+
 2013-07-19.3
 - FIX: .NET Framework 4.0 exceptions about loading DLLs downloaded from
   the web (since the whole .zip was downloaded from the web)