diff --git a/EonaCat.VolumeMixer.Tester/Program.cs b/EonaCat.VolumeMixer.Tester/Program.cs
index 81b7ab6..a03765c 100644
--- a/EonaCat.VolumeMixer.Tester/Program.cs
+++ b/EonaCat.VolumeMixer.Tester/Program.cs
@@ -16,7 +16,7 @@ class Program
             try
             {
                 // Get all audio PLAYBACK devices
-                var devices = await volumeMixer.GetAudioDevicesAsync(DataFlow.Output);
+                var devices = await volumeMixer.GetAudioDevicesAsync(DataFlow.Input);
                 Console.WriteLine($"Found {devices.Count} playback devices:");
 
                 foreach (var device in devices)
@@ -36,6 +36,9 @@ class Program
 
                         // Get all audio sessions
                         var sessions = await defaultDevice.GetAudioSessionsAsync();
+                        var sessions2 = await defaultDevice.GetAudioSessionsAsync();
+                        var sessions3 = await defaultDevice.GetAudioSessionsAsync();
+                        var sessions4 = await defaultDevice.GetAudioSessionsAsync();
                         Console.WriteLine($"Active sessions: {sessions.Count}");
 
                         foreach (var session in sessions)
@@ -99,15 +102,11 @@ class Program
             {
                 Console.WriteLine($"Error: {ex.Message}");
             }
-        }
 
-        // Microphone management example
-        using (var micManager = new MicrophoneManager())
-        {
             try
             {
                 // Get all microphones
-                var microphones = await micManager.GetMicrophonesAsync();
+                var microphones = await volumeMixer.GetMicrophonesAsync();
                 Console.WriteLine($"Found {microphones.Count} microphones:");
 
                 foreach (var mic in microphones)
@@ -119,7 +118,7 @@ class Program
                 }
 
                 // Default microphone
-                using (var defaultMic = await micManager.GetDefaultMicrophoneAsync())
+                using (var defaultMic = await volumeMixer.GetDefaultMicrophoneAsync())
                 {
                     Console.WriteLine($"\nSetting default microphone volume to 1%");
                     bool success = await defaultMic.SetMasterVolumeAsync(0.1f);
@@ -149,15 +148,15 @@ class Program
                     }
                 }
 
-                Console.WriteLine($"Default mic volume: {await micManager.GetMicrophoneVolumeAsync():P0}");
-                Console.WriteLine($"Default mic muted: {await micManager.GetMicrophoneMuteAsync()}");
+                Console.WriteLine($"Default mic volume: {await volumeMixer.GetMicrophoneVolumeAsync():P0}");
+                Console.WriteLine($"Default mic muted: {await volumeMixer.GetMicrophoneMuteAsync()}");
 
                 // Set microphone volume to 60%
-                bool result = await micManager.SetMicrophoneVolumeAsync(0.6f);
+                bool result = await volumeMixer.SetMicrophoneVolumeAsync(0.6f);
                 Console.WriteLine($"Set microphone volume to 60%: {result}");
 
                 // Set specific microphone by name
-                result = await micManager.SetMicrophoneVolumeByNameAsync("USB", 0.7f);
+                result = await volumeMixer.SetMicrophoneVolumeByNameAsync("USB", 0.7f);
                 Console.WriteLine($"Set USB microphone volume to 70%: {result}");
 
             }
diff --git a/EonaCat.VolumeMixer/EonaCat.VolumeMixer.csproj b/EonaCat.VolumeMixer/EonaCat.VolumeMixer.csproj
index 09be1ff..d184bee 100644
--- a/EonaCat.VolumeMixer/EonaCat.VolumeMixer.csproj
+++ b/EonaCat.VolumeMixer/EonaCat.VolumeMixer.csproj
@@ -18,9 +18,9 @@
     <PackageTags>EonaCat, Audio, Volume, Mixer .NET Standard, Jeroen, Saey</PackageTags>
     <PackageReleaseNotes></PackageReleaseNotes>
     <Description>EonaCat VolumeMixer</Description>
-    <Version>1.0.0</Version>
-    <AssemblyVersion>1.0.0.0</AssemblyVersion>
-    <FileVersion>1.0.0.0</FileVersion>
+    <Version>1.0.1</Version>
+    <AssemblyVersion>1.0.0.1</AssemblyVersion>
+    <FileVersion>1.0.0.1</FileVersion>
     <PackageIcon>icon.png</PackageIcon>
   </PropertyGroup>
 
diff --git a/EonaCat.VolumeMixer/Managers/MicrophoneManager.cs b/EonaCat.VolumeMixer/Managers/MicrophoneManager.cs
deleted file mode 100644
index b50b1b7..0000000
--- a/EonaCat.VolumeMixer/Managers/MicrophoneManager.cs
+++ /dev/null
@@ -1,146 +0,0 @@
-using EonaCat.VolumeMixer.Models;
-using System;
-using System.Collections.Generic;
-using System.Threading.Tasks;
-
-namespace EonaCat.VolumeMixer.Managers
-{
-    // This file is part of the EonaCat project(s) which is released under the Apache License.
-    // See the LICENSE file or go to https://EonaCat.com/License for full license details.
-    public class MicrophoneManager : IDisposable
-    {
-        private readonly VolumeMixerManager _volumeMixer;
-        private readonly object _syncLock = new();
-
-        public MicrophoneManager()
-        {
-            _volumeMixer = new VolumeMixerManager();
-        }
-
-        public async Task<List<AudioDevice>> GetMicrophonesAsync()
-        {
-            return await _volumeMixer.GetAudioDevicesAsync(DataFlow.Input);
-        }
-
-        public async Task<AudioDevice> GetDefaultMicrophoneAsync()
-        {
-                return await _volumeMixer.GetDefaultAudioDeviceAsync(DataFlow.Input);
-        }
-
-        public async Task<bool> SetMicrophoneVolumeAsync(float volume)
-        {
-            if (volume < 0f || volume > 1f)
-            {
-                return false;
-            }
-
-            AudioDevice defaultMic = await GetDefaultMicrophoneAsync();
-
-            if (defaultMic == null)
-            {
-                return false;
-            }
-
-            try
-            {
-                return await defaultMic.SetMasterVolumeAsync(volume);
-            }
-            finally
-            {
-                defaultMic.Dispose();
-            }
-        }
-
-        public async Task<float> GetMicrophoneVolumeAsync()
-        {
-            AudioDevice defaultMic = await GetDefaultMicrophoneAsync();
-
-            if (defaultMic == null)
-            {
-                return 0f;
-            }
-
-            try
-            {
-                return await defaultMic.GetMasterVolumeAsync();
-            }
-            finally
-            {
-                defaultMic.Dispose();
-            }
-        }
-
-        public async Task<bool> SetMicrophoneMuteAsync(bool mute)
-        {
-            AudioDevice defaultMic = await GetDefaultMicrophoneAsync();
-
-            if (defaultMic == null)
-            {
-                return false;
-            }
-
-            try
-            {
-                return await defaultMic.SetMasterMuteAsync(mute);
-            }
-            finally
-            {
-                defaultMic.Dispose();
-            }
-        }
-
-        public async Task<bool> GetMicrophoneMuteAsync()
-        {
-            AudioDevice defaultMic = await GetDefaultMicrophoneAsync();
-
-            if (defaultMic == null)
-            {
-                return false;
-            }
-
-            try
-            {
-                return await defaultMic.GetMasterMuteAsync();
-            }
-            finally
-            {
-                defaultMic.Dispose();
-            }
-        }
-
-        public async Task<bool> SetMicrophoneVolumeByNameAsync(string microphoneName, float volume)
-        {
-            if (string.IsNullOrWhiteSpace(microphoneName) || volume < 0f || volume > 1f)
-            {
-                return false;
-            }
-
-            List<AudioDevice> microphones = await GetMicrophonesAsync();
-
-            foreach (var mic in microphones)
-            {
-                try
-                {
-                    if (mic.Name.IndexOf(microphoneName, StringComparison.OrdinalIgnoreCase) >= 0)
-                    {
-                        return await mic.SetMasterVolumeAsync(volume);
-                    }
-                }
-                finally
-                {
-                    mic.Dispose();
-                }
-            }
-
-            return false;
-        }
-
-        public void Dispose()
-        {
-            lock (_syncLock)
-            {
-                _volumeMixer?.Dispose();
-            }
-        }
-    }
-}
diff --git a/EonaCat.VolumeMixer/Managers/VolumeMixerManager.cs b/EonaCat.VolumeMixer/Managers/VolumeMixerManager.cs
index ae0040b..bb40db3 100644
--- a/EonaCat.VolumeMixer/Managers/VolumeMixerManager.cs
+++ b/EonaCat.VolumeMixer/Managers/VolumeMixerManager.cs
@@ -92,18 +92,12 @@ namespace EonaCat.VolumeMixer.Managers
                                     }
                                 }
                             }
-                            catch
-                            {
-                                // Skip individual device on error
-                            }
+                            catch { }
                         }
 
                         ComHelper.ReleaseComObject(deviceCollection);
                     }
-                    catch
-                    {
-                        // Ignore all and return partial/empty result
-                    }
+                    catch { }
                 }
 
                 return devices;
@@ -132,45 +126,78 @@ namespace EonaCat.VolumeMixer.Managers
                                 var name = GetDeviceName(device);
                                 return new AudioDevice(device, id, name, true, dataFlow);
                             }
-
                             ComHelper.ReleaseComObject(device);
                         }
                     }
-                    catch
-                    {
-                        // Ignore and return null
-                    }
+                    catch { }
 
                     return null;
                 }
             });
         }
 
-        private string GetDeviceName(IMultiMediaDevice device)
+        public async Task<List<AudioDevice>> GetMicrophonesAsync()
         {
-            try
-            {
-                var result = device.OpenPropertyStore(0, out var propertyStore);
-                if (result == 0 && propertyStore != null)
-                {
-                    var propertyKey = PKEY_Device_FriendlyName;
-                    result = propertyStore.GetValue(ref propertyKey, out var propVariant);
-                    if (result == 0 && propVariant.data != IntPtr.Zero)
-                    {
-                        string name = Marshal.PtrToStringUni(propVariant.data);
-                        ComHelper.ReleaseComObject(propertyStore);
-                        return !string.IsNullOrEmpty(name) ? name : "Unknown Device";
-                    }
+            return await GetAudioDevicesAsync(DataFlow.Input);
+        }
 
-                    ComHelper.ReleaseComObject(propertyStore);
+        public async Task<AudioDevice> GetDefaultMicrophoneAsync()
+        {
+            return await GetDefaultAudioDeviceAsync(DataFlow.Input);
+        }
+
+        public async Task<bool> SetAudioDeviceVolumeByNameAsync(string audioDevice, float volume)
+        {
+            if (string.IsNullOrWhiteSpace(audioDevice) || volume < 0f || volume > 1f)
+            {
+                return false;
+            }
+
+            List<AudioDevice> audioDevices = await GetAudioDevicesAsync();
+
+            foreach (var mic in audioDevices)
+            {
+                try
+                {
+                    if (mic.Name.IndexOf(audioDevice, StringComparison.OrdinalIgnoreCase) >= 0)
+                    {
+                        return await mic.SetMasterVolumeAsync(volume);
+                    }
+                }
+                finally
+                {
+                    mic.Dispose();
                 }
             }
-            catch
+
+            return false;
+        }
+
+        public async Task<bool> SetMicrophoneVolumeByNameAsync(string microphoneName, float volume)
+        {
+            if (string.IsNullOrWhiteSpace(microphoneName) || volume < 0f || volume > 1f)
             {
-                // Ignore and fall through
+                return false;
             }
 
-            return "Unknown Device";
+            List<AudioDevice> microphones = await GetMicrophonesAsync();
+
+            foreach (var mic in microphones)
+            {
+                try
+                {
+                    if (mic.Name.IndexOf(microphoneName, StringComparison.OrdinalIgnoreCase) >= 0)
+                    {
+                        return await mic.SetMasterVolumeAsync(volume);
+                    }
+                }
+                finally
+                {
+                    mic.Dispose();
+                }
+            }
+
+            return false;
         }
 
         public async Task<bool> SetSystemVolumeAsync(float volume)
@@ -254,6 +281,87 @@ namespace EonaCat.VolumeMixer.Managers
             }
         }
 
+        public async Task<float> GetMicrophoneVolumeAsync()
+        {
+            AudioDevice defaultMic = await GetDefaultMicrophoneAsync();
+
+            if (defaultMic == null)
+            {
+                return 0f;
+            }
+
+            try
+            {
+                return await defaultMic.GetMasterVolumeAsync();
+            }
+            finally
+            {
+                defaultMic.Dispose();
+            }
+        }
+
+        public async Task<bool> SetMicrophoneVolumeAsync(float volume)
+        {
+            if (volume < 0f || volume > 1f)
+            {
+                return false;
+            }
+
+            AudioDevice defaultMic = await GetDefaultMicrophoneAsync();
+
+            if (defaultMic == null)
+            {
+                return false;
+            }
+
+            try
+            {
+                return await defaultMic.SetMasterVolumeAsync(volume);
+            }
+            finally
+            {
+                defaultMic.Dispose();
+            }
+        }
+
+        public async Task<bool> SetMicrophoneMuteAsync(bool mute)
+        {
+            AudioDevice defaultMic = await GetDefaultMicrophoneAsync();
+
+            if (defaultMic == null)
+            {
+                return false;
+            }
+
+            try
+            {
+                return await defaultMic.SetMasterMuteAsync(mute);
+            }
+            finally
+            {
+                defaultMic.Dispose();
+            }
+        }
+
+        public async Task<bool> GetMicrophoneMuteAsync()
+        {
+            AudioDevice defaultMic = await GetDefaultMicrophoneAsync();
+
+            if (defaultMic == null)
+            {
+                return false;
+            }
+
+            try
+            {
+                return await defaultMic.GetMasterMuteAsync();
+            }
+            finally
+            {
+                defaultMic.Dispose();
+            }
+        }
+
         public async Task<List<AudioSession>> GetAllActiveSessionsAsync()
         {
             return await Task.Run(async () =>
@@ -268,10 +376,7 @@ namespace EonaCat.VolumeMixer.Managers
                     {
                         allSessions.AddRange(await device.GetAudioSessionsAsync());
                     }
-                    catch
-                    {
-                        // Skip device on error
-                    }
+                    catch { }
                     finally
                     {
                         device.Dispose();
@@ -282,6 +387,30 @@ namespace EonaCat.VolumeMixer.Managers
             });
         }
 
+        private string GetDeviceName(IMultiMediaDevice device)
+        {
+            try
+            {
+                var result = device.OpenPropertyStore(0, out var propertyStore);
+                if (result == 0 && propertyStore != null)
+                {
+                    var propertyKey = PKEY_Device_FriendlyName;
+                    result = propertyStore.GetValue(ref propertyKey, out var propVariant);
+                    if (result == 0 && propVariant.data != IntPtr.Zero)
+                    {
+                        string name = Marshal.PtrToStringUni(propVariant.data);
+                        ComHelper.ReleaseComObject(propertyStore);
+                        return !string.IsNullOrEmpty(name) ? name : "Unknown Device";
+                    }
+
+                    ComHelper.ReleaseComObject(propertyStore);
+                }
+            }
+            catch { }
+
+            return "Unknown Device";
+        }
+
         public void Dispose()
         {
             lock (_syncLock)
diff --git a/EonaCat.VolumeMixer/Models/AudioDevice.cs b/EonaCat.VolumeMixer/Models/AudioDevice.cs
index ec5c711..fd068f4 100644
--- a/EonaCat.VolumeMixer/Models/AudioDevice.cs
+++ b/EonaCat.VolumeMixer/Models/AudioDevice.cs
@@ -79,8 +79,8 @@ namespace EonaCat.VolumeMixer.Models
 
                     try
                     {
-                        var hr = _endpointVolume.GetMasterVolumeLevelScalar(out var volume);
-                        return hr == 0 ? volume : 0f;
+                        var result = _endpointVolume.GetMasterVolumeLevelScalar(out var volume);
+                        return result == 0 ? volume : 0f;
                     }
                     catch
                     {
diff --git a/EonaCat.VolumeMixer/Models/AudioSession.cs b/EonaCat.VolumeMixer/Models/AudioSession.cs
index c25328f..6068cdc 100644
--- a/EonaCat.VolumeMixer/Models/AudioSession.cs
+++ b/EonaCat.VolumeMixer/Models/AudioSession.cs
@@ -10,6 +10,7 @@ namespace EonaCat.VolumeMixer.Models
     // See the LICENSE file or go to https://EonaCat.com/License for full license details.
     public class AudioSession : IDisposable
     {
+        private static Guid SharedAppSessionGuid = new Guid("c0a3a9d0-b4dc-58b7-b95e-dcc407dbd8db");
         private readonly IAudioSessionControlExtended _sessionControl;
         private IAudioVolume _audioVolume;
         private bool _isDisposed = false;
@@ -33,14 +34,11 @@ namespace EonaCat.VolumeMixer.Models
             {
                 try
                 {
-                    var result = _sessionControl.GetGroupingParam(out var guid);
-                    if (result == 0)
+                    // Always use the shared static GUID
+                    var result = sessionManager.GetAudioVolume(ref SharedAppSessionGuid, 0, out var ptr);
+                    if (result == 0 && ptr != IntPtr.Zero)
                     {
-                        result = sessionManager.GetAudioVolume(ref guid, 0, out var ptr);
-                        if (result == 0 && ptr != IntPtr.Zero)
-                        {
-                            _audioVolume = ComHelper.GetInterface<IAudioVolume>(ptr);
-                        }
+                        _audioVolume = ComHelper.GetInterface<IAudioVolume>(ptr);
                     }
                 }
                 catch
@@ -126,8 +124,8 @@ namespace EonaCat.VolumeMixer.Models
             {
                 try
                 {
-                    var hr = audioVolCopy.SetMasterVolume(volume, ref guid);
-                    if (hr == 0)
+                    var result = audioVolCopy.SetMasterVolume(volume, ref guid);
+                    if (result == 0)
                     {
                         await Task.Delay(delayMs);
 
diff --git a/README.md b/README.md
index 36c07de..4f4cf84 100644
--- a/README.md
+++ b/README.md
@@ -88,18 +88,18 @@ using System.Threading.Tasks;
 
 class Program
 {
-    // This file is part of the EonaCat project(s) which is released under the Apache License.
+  // This file is part of the EonaCat project(s) which is released under the Apache License.
     // See the LICENSE file or go to https://EonaCat.com/License for full license details.
     [STAThread]
     static async Task Main()
     {
-        // Playback management example
+        // 1. Create the volume mixer manager
         using (var volumeMixer = new VolumeMixerManager())
         {
             try
             {
-                // Get all audio PLAYBACK devices
-                var devices = await volumeMixer.GetAudioDevicesAsync(DataFlow.Output);
+                // 2. Get all audio PLAYBACK devices
+                var devices = await volumeMixer.GetAudioDevicesAsync(DataFlow.Input);
                 Console.WriteLine($"Found {devices.Count} playback devices:");
 
                 foreach (var device in devices)
@@ -119,6 +119,9 @@ class Program
 
                         // Get all audio sessions
                         var sessions = await defaultDevice.GetAudioSessionsAsync();
+                        var sessions2 = await defaultDevice.GetAudioSessionsAsync();
+                        var sessions3 = await defaultDevice.GetAudioSessionsAsync();
+                        var sessions4 = await defaultDevice.GetAudioSessionsAsync();
                         Console.WriteLine($"Active sessions: {sessions.Count}");
 
                         foreach (var session in sessions)
@@ -182,33 +185,11 @@ class Program
             {
                 Console.WriteLine($"Error: {ex.Message}");
             }
-        }
-    }
-}
-```
 
-
-## Microphone management example:
-```csharp
-using EonaCat.VolumeMixer.Managers;
-using EonaCat.VolumeMixer.Models;
-using System;
-using System.Threading.Tasks;
-
-class Program
-{
-    // This file is part of the EonaCat project(s) which is released under the Apache License.
-    // See the LICENSE file or go to https://EonaCat.com/License for full license details.
-    [STAThread]
-    static async Task Main()
-    {
-        // Microphone management example
-        using (var micManager = new MicrophoneManager())
-        {
             try
             {
-                // Get all microphones
-                var microphones = await micManager.GetMicrophonesAsync();
+                // 3. Get all microphones
+                var microphones = await volumeMixer.GetMicrophonesAsync();
                 Console.WriteLine($"Found {microphones.Count} microphones:");
 
                 foreach (var mic in microphones)
@@ -220,7 +201,7 @@ class Program
                 }
 
                 // Default microphone
-                using (var defaultMic = await micManager.GetDefaultMicrophoneAsync())
+                using (var defaultMic = await volumeMixer.GetDefaultMicrophoneAsync())
                 {
                     Console.WriteLine($"\nSetting default microphone volume to 1%");
                     bool success = await defaultMic.SetMasterVolumeAsync(0.1f);
@@ -250,15 +231,15 @@ class Program
                     }
                 }
 
-                Console.WriteLine($"Default mic volume: {await micManager.GetMicrophoneVolumeAsync():P0}");
-                Console.WriteLine($"Default mic muted: {await micManager.GetMicrophoneMuteAsync()}");
+                Console.WriteLine($"Default mic volume: {await volumeMixer.GetMicrophoneVolumeAsync():P0}");
+                Console.WriteLine($"Default mic muted: {await volumeMixer.GetMicrophoneMuteAsync()}");
 
                 // Set microphone volume to 60%
-                bool result = await micManager.SetMicrophoneVolumeAsync(0.6f);
+                bool result = await volumeMixer.SetMicrophoneVolumeAsync(0.6f);
                 Console.WriteLine($"Set microphone volume to 60%: {result}");
 
                 // Set specific microphone by name
-                result = await micManager.SetMicrophoneVolumeByNameAsync("USB", 0.7f);
+                result = await volumeMixer.SetMicrophoneVolumeByNameAsync("USB", 0.7f);
                 Console.WriteLine($"Set USB microphone volume to 70%: {result}");
 
             }
@@ -268,5 +249,4 @@ class Program
             }
         }
     }
-}
 ```
\ No newline at end of file