diff --git a/Stundensheet.xlsx b/Stundensheet.xlsx
index 6a65e9e0..9b7c5ed2 100644
Binary files a/Stundensheet.xlsx and b/Stundensheet.xlsx differ
diff --git a/nsw/Source/bsmd.ExcelReadService/ExcelReader.cs b/nsw/Source/bsmd.ExcelReadService/ExcelReader.cs
index 59a0103e..0a28dc3b 100644
--- a/nsw/Source/bsmd.ExcelReadService/ExcelReader.cs
+++ b/nsw/Source/bsmd.ExcelReadService/ExcelReader.cs
@@ -99,6 +99,7 @@ namespace bsmd.ExcelReadService
                         break;
                 }
             }
+            Marshal.ReleaseComObject(range);
         }
 
         internal string ReadText(string lookup)
@@ -264,12 +265,14 @@ namespace bsmd.ExcelReadService
         {
             if(this._portcall != null)
             {
-                _log.Debug("close Worksheet");
+                this._portcall.Close(0);
+                _log.Debug("Close Worksheet");
                 Marshal.ReleaseComObject(this._portcall);
             }
 
             if (this._excelWorkbooks != null)
             {
+                this._excelWorkbooks.Close();
                 _log.Debug("Close Workbooks");
                 Marshal.ReleaseComObject(this._excelWorkbooks);
                 // this._excelWorkbooks.Close();
@@ -278,6 +281,7 @@ namespace bsmd.ExcelReadService
             {
                 _log.Debug("Quit Excel");
                 this._excelApp.Quit();
+                Marshal.ReleaseComObject(this._excelApp);
             }
         }
 
@@ -432,11 +436,12 @@ namespace bsmd.ExcelReadService
                     if (val is string)
                     {
                         double tmpDouble;
-                        if (double.TryParse(val, NumberStyles.None, CultureInfo.InvariantCulture, out tmpDouble))
+                        if (double.TryParse(val, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingWhite | NumberStyles.AllowTrailingWhite, 
+                            CultureInfo.InvariantCulture, out tmpDouble))
                             result = tmpDouble;
                         if (result == null)
                         {
-                            if (double.TryParse(val, out tmpDouble))
+                            if (double.TryParse(val, out tmpDouble)) // current language style (==GER, mit , statt .)
                                 result = tmpDouble;
                         }
                     }
diff --git a/nsw/Source/bsmd.ExcelReadService/Util.cs b/nsw/Source/bsmd.ExcelReadService/Util.cs
index 5cc785b0..27fa57a8 100644
--- a/nsw/Source/bsmd.ExcelReadService/Util.cs
+++ b/nsw/Source/bsmd.ExcelReadService/Util.cs
@@ -399,7 +399,12 @@ namespace bsmd.ExcelReadService
                 if (nextPorts.Count == 1)
                     noa_nod.NextPort = nextPorts[0];
                 else
-                    _log.WarnFormat("{0} results in {1} possible LOCODES", nextPort, nextPorts.Count);
+                {
+                    if (nextPort.Equals("ZZUKN", StringComparison.OrdinalIgnoreCase))
+                        noa_nod.NextPort = nextPort;
+                    else
+                        _log.WarnFormat("{0} results in {1} possible LOCODES", nextPort, nextPorts.Count);
+                }
             }
 
             noa_nod.ETDFromPortOfCall = reader.ReadDateTime("NOA_NOD.ETDDateFromPortOfCall", "NOA_NOD.ETDTimeFromPortOfCall");
@@ -453,8 +458,13 @@ namespace bsmd.ExcelReadService
             string wastedispServProvName = reader.ReadText("WAS.WasteDisposalServiceProviderName");
             if (wastedispServProvName != null)
             {
-                if(was.WasteDisposalServiceProvider.Count == 0)
-                    was.WasteDisposalServiceProvider.Add(new WasteDisposalServiceProvider());                
+                if (was.WasteDisposalServiceProvider.Count == 0)
+                {
+                    WasteDisposalServiceProvider wdsp = new WasteDisposalServiceProvider();
+                    wdsp.Identifier = "1";
+                    wdsp.WAS = was;
+                    was.WasteDisposalServiceProvider.Add(wdsp);
+                }
                 was.WasteDisposalServiceProvider[0].WasteDisposalServiceProviderName = wastedispServProvName;
                 was.WasteDisposalServiceProvider[0].WasteDisposalDelivery = was.WasteDisposalDelivery;
             }
diff --git a/nsw/Source/bsmd.database/Properties/AssemblyProductInfo.cs b/nsw/Source/bsmd.database/Properties/AssemblyProductInfo.cs
index 34ec8dea..67bd2c48 100644
--- a/nsw/Source/bsmd.database/Properties/AssemblyProductInfo.cs
+++ b/nsw/Source/bsmd.database/Properties/AssemblyProductInfo.cs
@@ -2,6 +2,6 @@
 
 [assembly: AssemblyCompany("Informatikbüro Daniel Schick")]
 [assembly: AssemblyProduct("BSMD NSW interface")]
-[assembly: AssemblyInformationalVersion("3.2.7")]
+[assembly: AssemblyInformationalVersion("3.2.8")]
 [assembly: AssemblyCopyright("Copyright ©  2014-2016 Informatikbüro Daniel Schick. All rights reserved.")]
 [assembly: AssemblyTrademark("")]
\ No newline at end of file
diff --git a/nsw/Source/bsmd.database/Properties/AssemblyProjectInfo.cs b/nsw/Source/bsmd.database/Properties/AssemblyProjectInfo.cs
index 0024d2a0..a40fd231 100644
--- a/nsw/Source/bsmd.database/Properties/AssemblyProjectInfo.cs
+++ b/nsw/Source/bsmd.database/Properties/AssemblyProjectInfo.cs
@@ -1,4 +1,4 @@
 using System.Reflection;
 
-[assembly: AssemblyVersion("3.2.7.*")]
+[assembly: AssemblyVersion("3.2.8.*")]