diff --git a/Source/Collections/IMultiDictionary.cs b/Source/Collections/IMultiDictionary.cs
index db377d4..562a7ff 100644
--- a/Source/Collections/IMultiDictionary.cs
+++ b/Source/Collections/IMultiDictionary.cs
@@ -31,11 +31,7 @@ namespace Nuclex.Support.Collections {
   /// <typeparam name="TValue">Type of values stored in the dictionary</typeparam>
   public interface IMultiDictionary<TKey, TValue> :
     IDictionary<TKey, ICollection<TValue>>,
-#if WINRT
-    ICollection,
-#else
     IDictionary,
-#endif
     ICollection<KeyValuePair<TKey, TValue>>,
     IEnumerable<KeyValuePair<TKey, TValue>>,
     IEnumerable {
diff --git a/Source/Collections/MultiDictionary.Interfaces.cs b/Source/Collections/MultiDictionary.Interfaces.cs
index 512c61c..b37c6ac 100644
--- a/Source/Collections/MultiDictionary.Interfaces.cs
+++ b/Source/Collections/MultiDictionary.Interfaces.cs
@@ -38,8 +38,6 @@ namespace Nuclex.Support.Collections {
 
     #region IDictionary implementation
 
-#if !WINRT
-
     /// <summary>Adds an item into the dictionary</summary>
     /// <param name="key">Key under which the item will be added</param>
     /// <param name="value">Item that will be added</param>
@@ -89,22 +87,16 @@ namespace Nuclex.Support.Collections {
       set { this[(TKey)key] = (ICollection<TValue>)value; }
     }
 
-#endif // !WINRT
-
     #endregion
 
     #region IDictionaryEnumerator implementation
 
-#if !WINRT
-
     /// <summary>Returns a new entry enumerator for the dictionary</summary>
     /// <returns>The new entry enumerator</returns>
     IDictionaryEnumerator IDictionary.GetEnumerator() {
       return new Enumerator(this);
     }
 
-#endif // !WINRT
-
     #endregion // IDictionaryEnumerator implementation
 
     #region ICollection<KeyValuePair<TKey, TValue>> implementation
diff --git a/Source/Collections/MultiDictionary.cs b/Source/Collections/MultiDictionary.cs
index 5073147..98dcd1e 100644
--- a/Source/Collections/MultiDictionary.cs
+++ b/Source/Collections/MultiDictionary.cs
@@ -34,9 +34,7 @@ namespace Nuclex.Support.Collections {
 
     /// <summary>Enumerates the values stored in a multi dictionary</summary>
     private class Enumerator :
-#if !WINRT
       IDictionaryEnumerator,
-#endif
       IEnumerator<KeyValuePair<TKey, TValue>> {
 
       /// <summary>Initializes a new multi dictionary enumerator</summary>
@@ -128,8 +126,6 @@ namespace Nuclex.Support.Collections {
 
       #region IDictionaryEnumerator implementation
 
-#if !WINRT
-
       /// <summary>The current entry the enumerator is pointing to</summary>
       DictionaryEntry IDictionaryEnumerator.Entry {
         get {
@@ -157,8 +153,6 @@ namespace Nuclex.Support.Collections {
         }
       }
 
-#endif // !WINRT
-
       #endregion // IDictionaryEnumerator implementation
 
       /// <summary>
@@ -227,9 +221,7 @@ namespace Nuclex.Support.Collections {
     /// <param name="dictionary">Dictionary the multi dictionary will be based on</param>
     internal MultiDictionary(IDictionary<TKey, ICollection<TValue>> dictionary) {
       this.typedDictionary = dictionary;
-#if !WINRT
       this.objectDictionary = (this.typedDictionary as IDictionary);
-#endif
 
       foreach(ICollection<TValue> values in dictionary.Values) {
         this.count += values.Count;
@@ -411,10 +403,8 @@ namespace Nuclex.Support.Collections {
 
     /// <summary>The wrapped Dictionary under its type-safe interface</summary>
     private IDictionary<TKey, ICollection<TValue>> typedDictionary;
-#if !WINRT
     /// <summary>The wrapped Dictionary under its object interface</summary>
     private IDictionary objectDictionary;
-#endif
     /// <summary>The number of items currently in the multi dictionary</summary>
     private int count;
     /// <summary>Provides the values stores in the dictionary in sequence</summary>
diff --git a/Source/Collections/ObservableDictionary.cs b/Source/Collections/ObservableDictionary.cs
index 21bcd47..9987f17 100644
--- a/Source/Collections/ObservableDictionary.cs
+++ b/Source/Collections/ObservableDictionary.cs
@@ -40,11 +40,7 @@ namespace Nuclex.Support.Collections {
     IDeserializationCallback,
 #endif
     IDictionary<TKey, TValue>,
-#if WINRT
-    ICollection,
-#else
     IDictionary,
-#endif
 #if !NO_SPECIALIZED_COLLECTIONS
     INotifyCollectionChanged,
 #endif
@@ -333,8 +329,6 @@ namespace Nuclex.Support.Collections {
 
     #region IDictionary implementation
 
-#if !WINRT
-
     /// <summary>Adds an item into the Dictionary</summary>
     /// <param name="key">Key under which the item will be added</param>
     /// <param name="value">Item that will be added</param>
@@ -395,22 +389,16 @@ namespace Nuclex.Support.Collections {
       }
     }
 
-#endif // !WINRT
-
     #endregion // IDictionary implementation
 
     #region IDictionaryEnumerator implementation
 
-#if !WINRT
-
     /// <summary>Returns a new entry enumerator for the dictionary</summary>
     /// <returns>The new entry enumerator</returns>
     IDictionaryEnumerator IDictionary.GetEnumerator() {
       return this.objectDictionary.GetEnumerator();
     }
 
-#endif // !WINRT
-
     #endregion // IDictionaryEnumerator implementation
 
     #region ICollection<> implementation
@@ -493,10 +481,8 @@ namespace Nuclex.Support.Collections {
 
     /// <summary>The wrapped Dictionary under its type-safe interface</summary>
     private IDictionary<TKey, TValue> typedDictionary;
-#if !WINRT
     /// <summary>The wrapped Dictionary under its object interface</summary>
     private IDictionary objectDictionary;
-#endif
 
   }
 
diff --git a/Source/Collections/ReadOnlyDictionary.cs b/Source/Collections/ReadOnlyDictionary.cs
index 2992a27..ecd8ff6 100644
--- a/Source/Collections/ReadOnlyDictionary.cs
+++ b/Source/Collections/ReadOnlyDictionary.cs
@@ -102,7 +102,6 @@ namespace Nuclex.Support.Collections {
       this.objectDictionary = (this.typedDictionary as IDictionary);
     }
 
-
     /// <summary>Whether the directory is write-protected</summary>
     public bool IsReadOnly {
       get { return true; }
@@ -237,8 +236,6 @@ namespace Nuclex.Support.Collections {
 
     #region IDictionary implementation
 
-#if !WINRT
-
     /// <summary>Removes all items from the Dictionary</summary>
     void IDictionary.Clear() {
       throw new NotSupportedException(
@@ -313,22 +310,16 @@ namespace Nuclex.Support.Collections {
       }
     }
 
-#endif // !WINRT
-
     #endregion // IDictionary implementation
 
     #region IDictionaryEnumerator implementation
 
-#if !WINRT
-
     /// <summary>Returns a new entry enumerator for the dictionary</summary>
     /// <returns>The new entry enumerator</returns>
     IDictionaryEnumerator IDictionary.GetEnumerator() {
       return this.objectDictionary.GetEnumerator();
     }
 
-#endif // !WINRT
-
     #endregion // IDictionaryEnumerator implementation
 
     #region ICollection<> implementation
@@ -410,10 +401,8 @@ namespace Nuclex.Support.Collections {
 
     /// <summary>The wrapped Dictionary under its type-safe interface</summary>
     private IDictionary<KeyType, ValueType> typedDictionary;
-#if !WINRT
     /// <summary>The wrapped Dictionary under its object interface</summary>
     private IDictionary objectDictionary;
-#endif
     /// <summary>ReadOnly wrapper for the keys collection of the Dictionary</summary>
     private ReadOnlyCollection<KeyType> readonlyKeyCollection;
     /// <summary>ReadOnly wrapper for the values collection of the Dictionary</summary>