diff --git a/OpenRa.DataStructures/Delegates.cs b/OpenRa.DataStructures/Delegates.cs
deleted file mode 100644
index 29d63224f4..0000000000
--- a/OpenRa.DataStructures/Delegates.cs
+++ /dev/null
@@ -1,14 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-
-namespace OpenRa
-{
-	// Put globally-useful delegate types here, particularly if
-	// they are generic.
-
-	public delegate T Provider<T>();
-	public delegate T Provider<T,U>( U u );
-	public delegate T Provider<T,U,V>( U u, V v );
-	public delegate void Action();
-}
diff --git a/OpenRa.DataStructures/OpenRa.DataStructures.csproj b/OpenRa.DataStructures/OpenRa.DataStructures.csproj
index e04b5174f2..2a624350ee 100644
--- a/OpenRa.DataStructures/OpenRa.DataStructures.csproj
+++ b/OpenRa.DataStructures/OpenRa.DataStructures.csproj
@@ -34,10 +34,8 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="Delegates.cs" />
     <Compile Include="float2.cs" />
     <Compile Include="int2.cs" />
-    <Compile Include="PriorityQueue.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Tuple.cs" />
   </ItemGroup>
diff --git a/OpenRa.DataStructures/PriorityQueue.cs b/OpenRa.DataStructures/PriorityQueue.cs
deleted file mode 100644
index 10266e3b9c..0000000000
--- a/OpenRa.DataStructures/PriorityQueue.cs
+++ /dev/null
@@ -1,139 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-using System.Diagnostics;
-
-namespace OpenRa
-{
-	public class PriorityQueue<T>
-		where T : IComparable<T>
-	{
-		List<T[]> items = new List<T[]>();
-		int level;
-		int index;
-
-		public PriorityQueue()
-		{
-			items.Add( new T[ 1 ] );
-		}
-
-		public void Add( T item )
-		{
-			int addLevel = level;
-			int addIndex = index;
-
-			while( addLevel >= 1 && Above( addLevel, addIndex ).CompareTo( item ) > 0 )
-			{
-				items[ addLevel ][ addIndex ] = Above( addLevel, addIndex );
-				--addLevel;
-				addIndex >>= 1;
-			}
-
-			items[ addLevel ][ addIndex ] = item;
-
-			++index;
-			if( index >= ( 1 << level ) )
-			{
-				index = 0;
-				++level;
-				if( items.Count <= level )
-					items.Add( new T[ 1 << level ] );
-			}
-		}
-
-		public bool Empty
-		{
-			get { return ( level == 0 ); }
-		}
-
-		T At( int level, int index )
-		{
-			return items[ level ][ index ];
-		}
-
-		T Above( int level, int index )
-		{
-			return items[ level - 1 ][ index >> 1 ];
-		}
-
-		T Last()
-		{
-			int lastLevel = level;
-			int lastIndex = index;
-			--lastIndex;
-			if( lastIndex < 0 )
-			{
-				--lastLevel;
-				lastIndex = ( 1 << lastLevel ) - 1;
-			}
-			return At( lastLevel, lastIndex );
-		}
-
-		public T Pop()
-		{
-			if( level == 0 && index == 0 )
-				throw new InvalidOperationException( "Attempting to pop empty PriorityQueue" );
-
-			T ret = At( 0, 0 );
-			BubbleInto( 0, 0, Last() );
-			--index;
-			if( index < 0 )
-			{
-				--level;
-				index = ( 1 << level ) - 1;
-			}
-
-			return ret;
-		}
-
-		void BubbleInto( int intoLevel, int intoIndex, T val )
-		{
-			int downLevel = intoLevel + 1;
-			int downIndex = intoIndex << 1;
-
-			if( downLevel > level || ( downLevel == level && downIndex >= index ))
-			{
-				items[ intoLevel ][ intoIndex ] = val;
-				return;
-			}
-
-			if( downLevel == level && downIndex == index - 1 )
-			{
-				//Log.Write( "one-option bubble" );
-			}
-			else if( At( downLevel, downIndex ).CompareTo( At( downLevel, downIndex + 1 ) ) < 0 )
-			{
-				//Log.Write( "left bubble" );
-			}
-			else
-			{
-				//Log.Write( "right bubble" );
-				++downIndex;
-			}
-
-			if( val.CompareTo( At( downLevel, downIndex ) ) <= 0 )
-			{
-				items[ intoLevel ][ intoIndex ] = val;
-				return;
-			}
-
-			items[ intoLevel ][ intoIndex ] = At( downLevel, downIndex );
-			BubbleInto( downLevel, downIndex, val );
-		}
-
-		//void Invariant()
-		//{
-		//      for( int i = 1 ; i < level ; i++ )
-		//            for( int j = 0 ; j < RowLength( i ) ; j++ )
-		//                  if( At( i, j ).CompareTo( Above( i, j ) ) < 0 )
-		//                        System.Diagnostics.Debug.Assert( At( i, j ).CompareTo( Above( i, j ) ) < 0, "At( i, j ) > Above( i, j )" );
-		//}
-
-		int RowLength( int i )
-		{
-			if( i == level )
-				return index;
-			return ( 1 << i );
-		}
-	}
-}
diff --git a/OpenRa.Game/Animation.cs b/OpenRa.Game/Animation.cs
index a2b425baef..b414f7829a 100644
--- a/OpenRa.Game/Animation.cs
+++ b/OpenRa.Game/Animation.cs
@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Text;
 using System.Windows.Forms;
+using IjwFramework.Delegates;
 
 namespace OpenRa.Game
 {
diff --git a/OpenRa.Game/Game.cs b/OpenRa.Game/Game.cs
index 7aa09c2e23..9ab2a46750 100644
--- a/OpenRa.Game/Game.cs
+++ b/OpenRa.Game/Game.cs
@@ -4,6 +4,7 @@ using System.Text;
 using OpenRa.FileFormats;
 using BluntDirectX.Direct3D;
 using System.Drawing;
+using IjwFramework.Delegates;
 
 namespace OpenRa.Game
 {
diff --git a/OpenRa.Game/OpenRa.Game.csproj b/OpenRa.Game/OpenRa.Game.csproj
index 17fef9f087..375f65951f 100644
--- a/OpenRa.Game/OpenRa.Game.csproj
+++ b/OpenRa.Game/OpenRa.Game.csproj
@@ -33,6 +33,10 @@
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\release\BluntDx.dll</HintPath>
     </Reference>
+    <Reference Include="IjwFramework, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\IjwFramework\IjwFramework\bin\Debug\IjwFramework.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Data" />
     <Reference Include="System.Drawing" />
diff --git a/OpenRa.Game/PathFinder.cs b/OpenRa.Game/PathFinder.cs
index e4672d857e..ce87825dce 100644
--- a/OpenRa.Game/PathFinder.cs
+++ b/OpenRa.Game/PathFinder.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Text;
 using OpenRa.FileFormats;
 using System.Windows.Forms;
+using IjwFramework.Collections;
 
 namespace OpenRa.Game
 {
diff --git a/OpenRa.Game/Region.cs b/OpenRa.Game/Region.cs
index 9f787b8ff7..8846c01c4a 100644
--- a/OpenRa.Game/Region.cs
+++ b/OpenRa.Game/Region.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Text;
 using System.Drawing;
 using System.Windows.Forms;
+using IjwFramework.Delegates;
 
 namespace OpenRa.Game
 {
diff --git a/OpenRa.Game/Sidebar.cs b/OpenRa.Game/Sidebar.cs
index dee2316649..63e331992e 100644
--- a/OpenRa.Game/Sidebar.cs
+++ b/OpenRa.Game/Sidebar.cs
@@ -7,6 +7,7 @@ using OpenRa.FileFormats;
 using System.Drawing;
 using System.IO;
 using System.Windows.Forms;
+using IjwFramework.Delegates;
 
 namespace OpenRa.Game
 {