diff --git a/src/actions/vstudio/vs2010_vcxproxj.lua b/src/actions/vstudio/vs2010_vcxproxj.lua
index 93e9e8fa..3194ee5b 100644
--- a/src/actions/vstudio/vs2010_vcxproxj.lua
+++ b/src/actions/vstudio/vs2010_vcxproxj.lua
@@ -33,27 +33,11 @@ local vs10_helpers = premake.vstudio.vs10_helpers
 		end
 		return list
 	end
-
-	--function is used in tests yet not longer used in this file
-	function vs10_helpers.table_of_filters(t)
-		local filters ={}
-
-		for key, value in pairs(t) do
-			local result = vs10_helpers.list_of_directories_in_path(value)
-			for __,dir in ipairs(result) do
-				if table.contains(filters,dir) ~= true then
-					filters[#filters +1] = dir
-				end
-			end
-		end
-		
-		return filters
-	end
 
 	function vs10_helpers.table_of_file_filters(files)
 		local filters ={}
 
-		for key, valueTable in pairs(files) do
+		for _, valueTable in pairs(files) do
 			for _, entry in ipairs(valueTable) do
 				local result = vs10_helpers.list_of_directories_in_path(entry)
 				for __,dir in ipairs(result) do
diff --git a/tests/actions/vstudio/test_vs2010_filters.lua b/tests/actions/vstudio/test_vs2010_filters.lua
index 0ec379cd..f2ff0493 100644
--- a/tests/actions/vstudio/test_vs2010_filters.lua
+++ b/tests/actions/vstudio/test_vs2010_filters.lua
@@ -95,14 +95,6 @@
 		test.isequal("foo",result)
 	end	
 	
-	--[[
-	never passed nil
-	function vs10_filters.listOfDirectories_passedNil_returnsIsEmpty()
-		local result = vs10_helpers.list_of_directories_in_path(nil)
-		test.isequal(0,#result)
-	end
-	--]]
-	
 	function vs10_filters.listOfDirectories_oneDirectory_returnsSizeIsOne()
 		local result = vs10_helpers.list_of_directories_in_path("foo\\bar.h")
 		test.isequal(1,#result)
@@ -128,111 +120,6 @@
 		test.isequal(0,#result)
 	end
 	
-	
-	--not used in premake only the tests
-	function vs10_filters.tableOfFilters_emptyTable_returnsEmptyTable()
-		t = {}
-		local result = vs10_helpers.table_of_filters(t)
-		test.isequal(0,#result)
-	end
-	
-	function vs10_filters.tableOfFilters_tableHasFilesYetNoDirectories_returnSizeIsZero()
-		t =
-		{
-			'foo.h'
-		}
-		local result = vs10_helpers.table_of_filters(t)
-		test.isequal(0,#result)
-	end
-	
-	function vs10_filters.tableOfFilters_tableHasOneDirectory_returnSizeIsOne()
-		t =
-		{
-			'bar\\foo.h'
-		}
-		local result = vs10_helpers.table_of_filters(t)
-		test.isequal(1,#result)
-	end
-	function vs10_filters.tableOfFilters_tableHasTwoDirectories_returnSizeIsOne()
-		t =
-		{
-			'bar\\foo.h',
-			'baz\\foo.h'
-		}
-		local result = vs10_helpers.table_of_filters(t)
-		test.isequal(2,#result)
-	end
-	function vs10_filters.tableOfFilters_tableHasTwoDirectories_firstEntryIsBar()
-		t =
-		{
-			'bar\\foo.h',
-			'baz\\foo.h'
-		}
-		local result = vs10_helpers.table_of_filters(t)
-		test.isequal("bar",result[1])
-	end
-	function vs10_filters.tableOfFilters_tableHasTwoDirectories_secondEntryIsBaz()
-		t =
-		{
-			'bar\\foo.h',
-			'baz\\foo.h'
-		}
-		local result = vs10_helpers.table_of_filters(t)
-		test.isequal("baz",result[2])
-	end
-	
-	function vs10_filters.tableOfFilters_tableHasTwoSameDirectories_returnSizeIsOne()
-		t =
-		{
-			'bar\\foo.h',
-			'bar\\baz.h'
-		}
-		local result = vs10_helpers.table_of_filters(t)
-		test.isequal(1,#result)
-	end
-
-	function vs10_filters.tableOfFilters_tableEntryHasTwoDirectories_returnSizeIsTwo()
-		t =
-		{
-			'bar\\baz\\foo.h'
-		}
-		local result = vs10_helpers.table_of_filters(t)
-		test.isequal(2,#result)
-	end		
-
-	function vs10_filters.tableOfFilters_tableEntryHasTwoDirectories_firstEntryIsBarSlashBar()
-		t =
-		{
-			'bar\\baz\\foo.h'
-		}
-		local result = vs10_helpers.table_of_filters(t)
-		test.isequal('bar',result[1])
-	end	
-	
-	function vs10_filters.tableOfFilters_tableEntryHasTwoDirectories_secondEntryIsBarSlashBaz()
-		t =
-		{
-			'bar\\baz\\foo.h'
-		}
-		local result = vs10_helpers.table_of_filters(t)
-		test.isequal('bar\\baz',result[2])
-	end	
-	
-	
-	function vs10_filters.tableOfFilters_tableEntryHasTwoDirectoriesSecondDirisAlsoInNextEntry_returnSizeIsThree()
-		t =
-		{
-			'bar\\baz\\foo.h',
-			'baz\\foo.h'
-		}
-		local result = vs10_helpers.table_of_filters(t)
-		test.isequal(3,#result)
-	end		
-		
-	--
-		
-		
-	
 	function vs10_filters.tableOfFileFilters_returnSizeIsTwo()
 		local t =
 		{