diff --git a/Release.ps1 b/Release.ps1
index 06186a3..b48dc97 100644
--- a/Release.ps1
+++ b/Release.ps1
@@ -1,6 +1,40 @@
 
 $ErrorActionPreference = 'Stop'
 
+$include = @(
+    '*.cs',
+    '*.csproj',
+    '*.iss',
+    '*.js',
+    '*.lua',
+    '*.md',
+    '*.ps1',
+    '*.resx',
+    '*.sln',
+    '*.txt',
+    '*.xaml'
+)
+
+$files = Get-ChildItem -Path $PSScriptRoot -Recurse -File -Include $include
+
+foreach ($file in $files)
+{
+    $lines = Get-Content $file
+
+    foreach ($line in $lines)
+    {
+        foreach ($char in $line.ToCharArray())
+        {
+            $codePoint = [int]$char
+
+            if ($codePoint -gt 127)
+            {
+                throw "Non ASCII char $char in file '$($file.FullName)' in line: $line"
+            }
+        }
+    }
+}
+
 $desktopDir  = [Environment]::GetFolderPath('Desktop')
 $exePath     = $PSScriptRoot + '\mpv.net\bin\x64\mpvnet.exe'
 $versionInfo = [Diagnostics.FileVersionInfo]::GetVersionInfo($exePath)
diff --git a/extensions/RatingExtension/Properties/AssemblyInfo.cs b/extensions/RatingExtension/Properties/AssemblyInfo.cs
index b338c1e..1510960 100644
--- a/extensions/RatingExtension/Properties/AssemblyInfo.cs
+++ b/extensions/RatingExtension/Properties/AssemblyInfo.cs
@@ -6,11 +6,11 @@ using System.Runtime.InteropServices;
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyTitle("RatingExtension")]
-[assembly: AssemblyDescription("")]
+[assembly: AssemblyDescription("RatingExtension")]
 [assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("")]
+[assembly: AssemblyCompany("Frank Skare (stax76)")]
 [assembly: AssemblyProduct("RatingExtension")]
-[assembly: AssemblyCopyright("Copyright © 2017-2019 Frank Skare (stax76)")]
+[assembly: AssemblyCopyright("Copyright (C) 2017-2020 Frank Skare (stax76)")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
diff --git a/extensions/ScriptingExtension/Properties/AssemblyInfo.cs b/extensions/ScriptingExtension/Properties/AssemblyInfo.cs
index b338c1e..1510960 100644
--- a/extensions/ScriptingExtension/Properties/AssemblyInfo.cs
+++ b/extensions/ScriptingExtension/Properties/AssemblyInfo.cs
@@ -6,11 +6,11 @@ using System.Runtime.InteropServices;
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyTitle("RatingExtension")]
-[assembly: AssemblyDescription("")]
+[assembly: AssemblyDescription("RatingExtension")]
 [assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("")]
+[assembly: AssemblyCompany("Frank Skare (stax76)")]
 [assembly: AssemblyProduct("RatingExtension")]
-[assembly: AssemblyCopyright("Copyright © 2017-2019 Frank Skare (stax76)")]
+[assembly: AssemblyCopyright("Copyright (C) 2017-2020 Frank Skare (stax76)")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]