diff --git a/ase/awk/Awk.hpp b/ase/awk/Awk.hpp
index dfa5ae0b..c82f4373 100644
--- a/ase/awk/Awk.hpp
+++ b/ase/awk/Awk.hpp
@@ -1,5 +1,5 @@
 /*
- * $Id: Awk.hpp,v 1.53 2007/09/07 05:40:16 bacon Exp $
+ * $Id: Awk.hpp,v 1.54 2007/09/18 14:30:41 bacon Exp $
  */
 
 #ifndef _ASE_AWK_AWK_HPP_
@@ -561,13 +561,29 @@ protected:
 
 	/** 
 	 * @name Source code I/O handlers
-	 * A subclass should override the following methods to 
-	 * support the source code input and output.
-	 * The awk interpreter calls the following methods when
-	 * the parse method is invoked.
+	 * A subclass should override the following methods to support the 
+	 * source code input and output. The awk interpreter calls the 
+	 * following methods when the parse method is invoked.
+	 *
+	 * To read the source code, the interpter calls Awk::openSource with 
+	 * an Awk::Source object whose mode is set to Awk::Source::READ. 
+	 * If Awk::openSource returns 1, it calls Awk::readSource with 
+	 * the Awk::Source object subsequently until it returns 0. Finally, 
+	 * it calls Awk::closeSource with the same Awk::Source object. 
+	 * If Awk::openSource returns 0, the interpreter calls Awk::closeSource
+	 * immediately without calling Awk::readSource. If Awk::openSource 
+	 * returns -1, Awk::closeSource is not called. If readSource returns 
+	 * -1, the source code reading is aborted and Awk::closeSource is 
+	 *  called.
+	 *
+	 * The interpter is able to write back the internal parse tree
+	 * if openSource returns 1 when the mode of the Source object 
+	 * is set to Awk::Source::WRITE. Then it calls writeSource until
+	 * it has finished writing the parse tree, and calls closeSource.
+	 *
 	 */
 	/*@{*/
-	/** opens the source stream */
+	/** opens the source stream. */
 	virtual int     openSource  (Source& io) = 0;
 	/** closes the source stream */
 	virtual int     closeSource (Source& io) = 0;
diff --git a/ase/test/com/Awk.cs b/ase/test/com/Awk.cs
index d753fe9b..9e5fe8df 100644
--- a/ase/test/com/Awk.cs
+++ b/ase/test/com/Awk.cs
@@ -1,5 +1,5 @@
 /*
- * $Id: Awk.cs,v 1.2 2007/09/06 09:37:42 bacon Exp $
+ * $Id: Awk.cs,v 1.3 2007/09/18 14:30:41 bacon Exp $
  */
 
 using System;
@@ -50,7 +50,7 @@ namespace ase.com
 				icpc.FindConnectionPoint(ref g, out icp);
 				icp.Advise(this, out this.cookie);
 			}
-			catch (System.Runtime.InteropServices.COMException ex)
+			catch (System.Runtime.InteropServices.COMException)
 			{
 				this.cookie = -1;
 				//System.Windows.Forms.MessageBox.Show(ex.Message);
diff --git a/ase/test/com/StdAwk.cs b/ase/test/com/StdAwk.cs
index 2e324130..c543ec6f 100644
--- a/ase/test/com/StdAwk.cs
+++ b/ase/test/com/StdAwk.cs
@@ -1,5 +1,5 @@
 /*
- * $Id: StdAwk.cs,v 1.1 2007/09/03 03:50:39 bacon Exp $
+ * $Id: StdAwk.cs,v 1.2 2007/09/18 14:30:41 bacon Exp $
  */
 
 using System;
@@ -37,7 +37,7 @@ namespace ase.com
 
 				/* TODO: atoi */
 				try { t = System.Double.Parse((string)args[0]); }
-				catch (System.Exception e) { t = 0; }
+				catch (System.Exception) { t = 0; }
 
 				return System.Math.Sin(t);
 			}
diff --git a/ase/test/com/asecom.csproj b/ase/test/com/asecom.csproj
index 317bccd3..ebdf9899 100644
--- a/ase/test/com/asecom.csproj
+++ b/ase/test/com/asecom.csproj
@@ -29,10 +29,6 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Interop.ASECOM, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\cnt\obj\Debug\Interop.ASECOM.dll</HintPath>
-    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Data" />
     <Reference Include="System.Deployment" />
@@ -75,6 +71,16 @@
     </Compile>
     <Compile Include="StdAwk.cs" />
   </ItemGroup>
+  <ItemGroup>
+    <COMReference Include="ASECOM">
+      <Guid>{F9C69806-16A1-4162-998A-876B33C470BF}</Guid>
+      <VersionMajor>1</VersionMajor>
+      <VersionMinor>0</VersionMinor>
+      <Lcid>0</Lcid>
+      <WrapperTool>tlbimp</WrapperTool>
+      <Isolated>False</Isolated>
+    </COMReference>
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.