diff --git a/EDIFileLoader.Standard/EDIFileLoader.Core.csproj b/EDIFileLoader.Standard/EDIFileLoader.Core.csproj
index 0cf7305..263c724 100644
--- a/EDIFileLoader.Standard/EDIFileLoader.Core.csproj
+++ b/EDIFileLoader.Standard/EDIFileLoader.Core.csproj
@@ -21,7 +21,13 @@
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
-    
+    <DocumentationFile>bin\Release\EDIFileLoader.Core.xml</DocumentationFile>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+  </PropertyGroup>
+
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <DocumentationFile>bin\Debug\EDIFileLoader.Core.xml</DocumentationFile>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/EDIFileLoader/EDIFileLoader.csproj b/EDIFileLoader/EDIFileLoader.csproj
index dc8a4e4..db9bc34 100644
--- a/EDIFileLoader/EDIFileLoader.csproj
+++ b/EDIFileLoader/EDIFileLoader.csproj
@@ -22,6 +22,16 @@
 
   </PropertyGroup>
 
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <DocumentationFile>bin\Debug\EDIFileLoader.xml</DocumentationFile>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+  </PropertyGroup>
+
+  <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+    <DocumentationFile>bin\Release\EDIFileLoader.xml</DocumentationFile>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+  </PropertyGroup>
+
   <ItemGroup>
     <PackageReference Include="Azure.Storage.Blobs" Version="12.8.0" />
   </ItemGroup>
diff --git a/EDILibrary/EDILibrary.csproj b/EDILibrary/EDILibrary.csproj
index 63dee7d..2086a77 100644
--- a/EDILibrary/EDILibrary.csproj
+++ b/EDILibrary/EDILibrary.csproj
@@ -2,6 +2,8 @@
 
   <PropertyGroup Label="Configuration" Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
     <OutputType>Library</OutputType>
+    <DocumentationFile>bin\Debug\EDILibrary.xml</DocumentationFile>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -31,7 +33,8 @@
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
-    
+    <DocumentationFile>bin\Release\EDILibrary.xml</DocumentationFile>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/EDILibrary/Exceptions/BadFormatException.cs b/EDILibrary/Exceptions/BadFormatException.cs
index 1ac71c5..dd99753 100644
--- a/EDILibrary/Exceptions/BadFormatException.cs
+++ b/EDILibrary/Exceptions/BadFormatException.cs
@@ -1,13 +1,24 @@
-// Copyright (c) 2017 Hochfrequenz Unternehmensberatung GmbH
-using System;
+using System;
 
 namespace EDILibrary.Exceptions
 {
+    /// <summary>
+    /// The exception is thrown if the combination of a edifact format and its version is not supported.
+    /// </summary>
+    /// <seealso cref="BadPIDException"/>
     public class BadFormatException : Exception
     {
-        string _format;
-        string _version;
-        public override string Message { get { return string.Format("Format {0} in version {1} could not be found", _format, _version); } }
+        private string _format;
+        private string _version;
+
+        /// <inheritdoc />
+        public override string Message => $"Format {_format} in version {_version} could not be found";
+
+        /// <summary>
+        /// Initialize the Exception by providing both the (stringly typed) format and the version.
+        /// </summary>
+        /// <param name="format"></param>
+        /// <param name="version"></param>
         public BadFormatException(string format, string version)
         {
             _format = format;
diff --git a/EDILibrary/Exceptions/BadPIDException.cs b/EDILibrary/Exceptions/BadPIDException.cs
index b7dfd2f..8a8918e 100644
--- a/EDILibrary/Exceptions/BadPIDException.cs
+++ b/EDILibrary/Exceptions/BadPIDException.cs
@@ -1,12 +1,22 @@
-// Copyright (c) 2017 Hochfrequenz Unternehmensberatung GmbH
-using System;
+using System;
 
 namespace EDILibrary.Exceptions
 {
+    /// <summary>
+    /// Exception that is thrown if a pruefidentifikator is not known/not supported (yet).
+    /// </summary>
+    /// <seealso cref="BadFormatException"/>
     public class BadPIDException : Exception
     {
-        string _pid;
-        public override string Message { get { return "Pid " + _pid + " is unknown."; } }
+        private readonly string _pid;
+
+        /// <inheritdoc />
+        public override string Message => "Pid " + _pid + " is unknown.";
+
+        /// <summary>
+        /// Initialize the exception by providing the unsupported prüfidentifikator / message class <paramref name="pid"/>
+        /// </summary>
+        /// <param name="pid">e.g. "11099"</param>
         public BadPIDException(string pid)
         {
             _pid = pid;
diff --git a/EDILibraryBase/EDILibrary.Standard.csproj b/EDILibraryBase/EDILibrary.Standard.csproj
index 0ab9ed6..0256c44 100644
--- a/EDILibraryBase/EDILibrary.Standard.csproj
+++ b/EDILibraryBase/EDILibrary.Standard.csproj
@@ -21,6 +21,16 @@
 
   </PropertyGroup>
 
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <DocumentationFile>bin\Debug\EDILibrary.Standard.xml</DocumentationFile>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+  </PropertyGroup>
+
+  <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+    <DocumentationFile>bin\Release\EDILibrary.Standard.xml</DocumentationFile>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+  </PropertyGroup>
+
   <ItemGroup>
     <Compile Include="..\EDILibrary\CSVMapper.cs" Link="CSVMapper.cs" />
     <Compile Include="..\EDILibrary\Customization.cs" Link="Customization.cs" />