diff --git a/ILSpy/AssemblyTreeNode.cs b/ILSpy/AssemblyTreeNode.cs
index 8e66a8aa5..6e4e6f4ca 100644
--- a/ILSpy/AssemblyTreeNode.cs
+++ b/ILSpy/AssemblyTreeNode.cs
@@ -212,7 +212,7 @@ namespace ICSharpCode.ILSpy
 		
 		public override void Decompile(Language language, ITextOutput output, DecompilationOptions options)
 		{
-			language.DecompileAssembly(assemblyTask.Result, output, options);
+			language.DecompileAssembly(assemblyTask.Result, fileName, output, options);
 		}
 	}
 }
diff --git a/ILSpy/Disassembler/ILLanguage.cs b/ILSpy/Disassembler/ILLanguage.cs
index ee48c8098..6bd6f548c 100644
--- a/ILSpy/Disassembler/ILLanguage.cs
+++ b/ILSpy/Disassembler/ILLanguage.cs
@@ -18,6 +18,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.IO;
 using Mono.Cecil;
 
 namespace ICSharpCode.ILSpy.Disassembler
@@ -69,8 +70,11 @@ namespace ICSharpCode.ILSpy.Disassembler
 			new ReflectionDisassembler(output, detectControlStructure, options.CancellationToken).DisassembleNamespace(nameSpace, types);
 		}
 		
-		public override void DecompileAssembly(AssemblyDefinition assembly, ITextOutput output, DecompilationOptions options)
+		public override void DecompileAssembly(AssemblyDefinition assembly, string fileName, ITextOutput output, DecompilationOptions options)
 		{
+			output.WriteCommentLine("// " + fileName);
+			output.WriteCommentLine("");
+			
 			new ReflectionDisassembler(output, detectControlStructure, options.CancellationToken).WriteAssemblyHeader(assembly);
 		}
 		
diff --git a/ILSpy/Language.cs b/ILSpy/Language.cs
index 3beb2d238..8243107b8 100644
--- a/ILSpy/Language.cs
+++ b/ILSpy/Language.cs
@@ -60,7 +60,7 @@ namespace ICSharpCode.ILSpy
 		{
 		}
 		
-		public virtual void DecompileAssembly(AssemblyDefinition assembly, ITextOutput output, DecompilationOptions options)
+		public virtual void DecompileAssembly(AssemblyDefinition assembly, string fileName, ITextOutput output, DecompilationOptions options)
 		{
 		}
 		
diff --git a/ILSpy/TextView/ILAsm-Mode.xshd b/ILSpy/TextView/ILAsm-Mode.xshd
index 93ec0e8fe..5f582d37c 100644
--- a/ILSpy/TextView/ILAsm-Mode.xshd
+++ b/ILSpy/TextView/ILAsm-Mode.xshd
@@ -1,7 +1,6 @@
 <SyntaxDefinition name="ILAsm" extensions=".il" xmlns="http://icsharpcode.net/sharpdevelop/syntaxdefinition/2008">
 	<Color name="Comment" foreground="Green" exampleText="// comment" />
 	<Color name="String" foreground="Magenta" exampleText="&quot;Hello, World!&quot;" />
-	<Color name="NumberLiteral" foreground="DarkBlue" exampleText="3.1415" />
 	<Color name="Instructions" foreground="Blue" exampleText="nop;" />
 	<Color name="Keywords" foreground="Blue" fontWeight="bold" exampleText="true" />
 	<Color name="Directives" foreground="Green" fontWeight="bold" exampleText=".class" />
@@ -504,10 +503,6 @@
 			<Begin>"</Begin>
 			<End>"</End>
 		</Span>
-		<Rule color="NumberLiteral">\b0[xX][0-9a-fA-F]+|\b(\d+(\.[0-9]+)?|\.[0-9]+)([eE][+-]?[0-9]+)?</Rule>
-		<!--<Rule color="Punctuation">
-			[?,.;()\[\]{}+\-/%*&lt;&gt;^+~!|&amp;]+
-		</Rule>-->
 	</RuleSet>
 	<RuleSet name="CommentMarkerSet" ignoreCase="false">
 		<Keywords foreground="#FFFF0000" fontWeight="bold">