diff --git a/ZKuP/MainWindow.xaml.cs b/ZKuP/MainWindow.xaml.cs
index e0b71bb..ffe782b 100644
--- a/ZKuP/MainWindow.xaml.cs
+++ b/ZKuP/MainWindow.xaml.cs
@@ -43,7 +43,7 @@ namespace ZKuP
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
         }
 
-        public const string Version = "5.1.0.5";
+        public const string Version = "5.1.0.6";
         public static Roles LoggedInRole { get; private set; } = Roles.None;
 
 
diff --git a/ZKuP/ManageAsp.xaml.cs b/ZKuP/ManageAsp.xaml.cs
index 817f724..6dfbb9a 100644
--- a/ZKuP/ManageAsp.xaml.cs
+++ b/ZKuP/ManageAsp.xaml.cs
@@ -54,7 +54,11 @@ namespace ZKuP
             }
             else
             {
-                asp = SQL.ReadSQL($"SELECT * FROM {MainWindow.table}.ansprechpartner WHERE Name LIKE '%{Helper.InsertSpaceBeforeUpperCase(Environment.UserName)}%' OR Vertreter LIKE '%{Helper.InsertSpaceBeforeUpperCase(Environment.UserName)}%' OR Vorgesetzter LIKE '%{Helper.InsertSpaceBeforeUpperCase(Environment.UserName)}%' OR CreatorID = '{UserID}' ORDER BY Name ASC", asp).Result;
+                asp = SQL.ReadSQL($"SELECT * FROM {MainWindow.table}.ansprechpartner WHERE " +
+                    $"Name LIKE '%{Helper.InsertSpaceBeforeUpperCase(Environment.UserName.ReplaceMiddleInitialWithSpace()).ReplaceUmlaute()}%' OR " +
+                    $"Vertreter LIKE '%{Helper.InsertSpaceBeforeUpperCase(Environment.UserName.ReplaceMiddleInitialWithSpace()).ReplaceUmlaute()}%' OR " +
+                    $"Vorgesetzter LIKE '%{Helper.InsertSpaceBeforeUpperCase(Environment.UserName.ReplaceMiddleInitialWithSpace()).ReplaceUmlaute()}%' OR " +
+                    $"CreatorID = '{UserID}' ORDER BY Name ASC", asp).Result;
             }
 
             //aspView = Asp.DataTableToAsp(asp);
diff --git a/ZKuP/StringExtensions.cs b/ZKuP/StringExtensions.cs
new file mode 100644
index 0000000..72b2a01
--- /dev/null
+++ b/ZKuP/StringExtensions.cs
@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+namespace ZKuP
+{
+    public static class StringExtensions
+    {
+        public static string ReplaceUmlaute(this string input)
+        {
+            if (string.IsNullOrEmpty(input))
+                return input;
+
+            return input
+                .Replace("ä", "ae")
+                .Replace("ö", "oe")
+                .Replace("ü", "ue")
+                .Replace("Ä", "Ae")
+                .Replace("Ö", "Oe")
+                .Replace("Ü", "Ue")
+                .Replace("ß", "ss");
+        }
+
+        public static string ReplaceMiddleInitialWithSpace(this string input)
+        {
+            if (string.IsNullOrEmpty(input))
+                return input;
+
+            var pattern = @"^([A-Za-z]{2,})([A-Z][a-z]?)([A-Z][A-Za-z]+)$";
+            var match = Regex.Match(input, pattern);
+
+            if (match.Success)
+            {
+                return match.Groups[1].Value + " " + match.Groups[3].Value;
+            }
+
+            return input;
+        }
+    }
+}
diff --git a/ZKuP/ZKuP.csproj b/ZKuP/ZKuP.csproj
index d50f146..70b6cd8 100644
--- a/ZKuP/ZKuP.csproj
+++ b/ZKuP/ZKuP.csproj
@@ -323,6 +323,7 @@
     </Compile>
     <Compile Include="signoPad.cs" />
     <Compile Include="SQL.cs" />
+    <Compile Include="StringExtensions.cs" />
     <Compile Include="ucSpinnerPiston.xaml.cs">
       <DependentUpon>ucSpinnerPiston.xaml</DependentUpon>
     </Compile>