diff --git a/project/vc8/Nvidia.TextureTools/TextureTools.cs b/project/vc8/Nvidia.TextureTools/TextureTools.cs
index 74cdc9b..9b57249 100644
--- a/project/vc8/Nvidia.TextureTools/TextureTools.cs
+++ b/project/vc8/Nvidia.TextureTools/TextureTools.cs
@@ -428,8 +428,8 @@ namespace Nvidia.TextureTools
 		[DllImport("nvtt", CharSet = CharSet.Ansi), SuppressUnmanagedCodeSecurity]
 		private extern static void nvttSetOutputOptionsFileName(IntPtr outputOptions, string fileName);
 
-		[DllImport("nvtt"), SuppressUnmanagedCodeSecurity]
-		private extern static void nvttSetOutputOptionsErrorHandler(IntPtr outputOptions, ErrorHandler errorHandler);
+		//[DllImport("nvtt"), SuppressUnmanagedCodeSecurity]
+		//private extern static void nvttSetOutputOptionsErrorHandler(IntPtr outputOptions, ErrorHandler errorHandler);
 
 		private void ErrorCallback(Error error)
 		{
@@ -449,7 +449,7 @@ namespace Nvidia.TextureTools
 		public OutputOptions()
 		{
 			options = nvttCreateOutputOptions();
-			nvttSetOutputOptionsErrorHandler(options, new ErrorHandler(ErrorCallback));
+			//nvttSetOutputOptionsErrorHandler(options, new ErrorHandler(ErrorCallback));
 		}
 		~OutputOptions()
 		{
diff --git a/project/vc9/Nvidia.TextureTools/TextureTools.cs b/project/vc9/Nvidia.TextureTools/TextureTools.cs
index 74cdc9b..9b57249 100644
--- a/project/vc9/Nvidia.TextureTools/TextureTools.cs
+++ b/project/vc9/Nvidia.TextureTools/TextureTools.cs
@@ -428,8 +428,8 @@ namespace Nvidia.TextureTools
 		[DllImport("nvtt", CharSet = CharSet.Ansi), SuppressUnmanagedCodeSecurity]
 		private extern static void nvttSetOutputOptionsFileName(IntPtr outputOptions, string fileName);
 
-		[DllImport("nvtt"), SuppressUnmanagedCodeSecurity]
-		private extern static void nvttSetOutputOptionsErrorHandler(IntPtr outputOptions, ErrorHandler errorHandler);
+		//[DllImport("nvtt"), SuppressUnmanagedCodeSecurity]
+		//private extern static void nvttSetOutputOptionsErrorHandler(IntPtr outputOptions, ErrorHandler errorHandler);
 
 		private void ErrorCallback(Error error)
 		{
@@ -449,7 +449,7 @@ namespace Nvidia.TextureTools
 		public OutputOptions()
 		{
 			options = nvttCreateOutputOptions();
-			nvttSetOutputOptionsErrorHandler(options, new ErrorHandler(ErrorCallback));
+			//nvttSetOutputOptionsErrorHandler(options, new ErrorHandler(ErrorCallback));
 		}
 		~OutputOptions()
 		{