diff --git a/windows/netgen.vcproj b/windows/netgen.vcproj
index 329ff427..d8046921 100644
--- a/windows/netgen.vcproj
+++ b/windows/netgen.vcproj
@@ -21,6 +21,7 @@
 			OutputDirectory="Debug"
 			IntermediateDirectory="Debug"
 			ConfigurationType="1"
+			DeleteExtensionsOnClean="*.obj;*.ilk;*.tlb;*.tli;*.tlh;*.tmp;*.rsp;*.pgc;*.pgd;*.meta;*.exp;*.lib;$(TargetPath)"
 			BuildLogFile="$(SolutionDir)\BuildLog_$(ProjectName).htm"
 			>
 			<Tool
@@ -104,6 +105,7 @@
 			OutputDirectory="Release"
 			IntermediateDirectory="Release"
 			ConfigurationType="1"
+			DeleteExtensionsOnClean="*.obj;*.ilk;*.tlb;*.tli;*.tlh;*.tmp;*.rsp;*.pgc;*.pgd;*.meta;*.exp;*.lib;$(TargetPath)"
 			BuildLogFile="$(SolutionDir)\BuildLog_$(ProjectName).htm"
 			>
 			<Tool
@@ -192,6 +194,7 @@
 			OutputDirectory="$(ConfigurationName)"
 			IntermediateDirectory="$(ConfigurationName)"
 			ConfigurationType="1"
+			DeleteExtensionsOnClean="*.obj;*.ilk;*.tlb;*.tli;*.tlh;*.tmp;*.rsp;*.pgc;*.pgd;*.meta;*.exp;*.lib;$(TargetPath)"
 			BuildLogFile="$(SolutionDir)\BuildLog_$(ProjectName).htm"
 			>
 			<Tool
@@ -280,6 +283,7 @@
 			OutputDirectory="$(ConfigurationName)"
 			IntermediateDirectory="$(ConfigurationName)"
 			ConfigurationType="1"
+			DeleteExtensionsOnClean="*.obj;*.ilk;*.tlb;*.tli;*.tlh;*.tmp;*.rsp;*.pgc;*.pgd;*.meta;*.exp;*.lib;$(TargetPath)"
 			BuildLogFile="$(SolutionDir)\BuildLog_$(ProjectName).htm"
 			>
 			<Tool
@@ -424,11 +428,11 @@
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\csg\csg.hpp"
+				RelativePath="..\libsrc\include\csg.hpp"
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\include\csg.hpp"
+				RelativePath="..\libsrc\csg\csg.hpp"
 				>
 			</File>
 			<File
@@ -500,11 +504,11 @@
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\geom2d\geometry2d.hpp"
+				RelativePath="..\libsrc\include\geometry2d.hpp"
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\include\geometry2d.hpp"
+				RelativePath="..\libsrc\geom2d\geometry2d.hpp"
 				>
 			</File>
 			<File
@@ -604,11 +608,11 @@
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\include\linalg.hpp"
+				RelativePath="..\libsrc\linalg\linalg.hpp"
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\linalg\linalg.hpp"
+				RelativePath="..\libsrc\include\linalg.hpp"
 				>
 			</File>
 			<File
@@ -632,11 +636,11 @@
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\meshing\meshing.hpp"
+				RelativePath="..\libsrc\include\meshing.hpp"
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\include\meshing.hpp"
+				RelativePath="..\libsrc\meshing\meshing.hpp"
 				>
 			</File>
 			<File
@@ -724,11 +728,11 @@
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\include\occgeom.hpp"
+				RelativePath="..\libsrc\occ\occgeom.hpp"
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\occ\occgeom.hpp"
+				RelativePath="..\libsrc\include\occgeom.hpp"
 				>
 			</File>
 			<File
@@ -736,11 +740,11 @@
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\include\opti.hpp"
+				RelativePath="..\libsrc\linalg\opti.hpp"
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\linalg\opti.hpp"
+				RelativePath="..\libsrc\include\opti.hpp"
 				>
 			</File>
 			<File
@@ -848,11 +852,11 @@
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\include\stlgeom.hpp"
+				RelativePath="..\libsrc\stlgeom\stlgeom.hpp"
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\stlgeom\stlgeom.hpp"
+				RelativePath="..\libsrc\include\stlgeom.hpp"
 				>
 			</File>
 			<File
@@ -916,11 +920,11 @@
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\visualization\visual.hpp"
+				RelativePath="..\libsrc\include\visual.hpp"
 				>
 			</File>
 			<File
-				RelativePath="..\libsrc\include\visual.hpp"
+				RelativePath="..\libsrc\visualization\visual.hpp"
 				>
 			</File>
 			<File
diff --git a/windows/netgen_MSVC2005.vcproj b/windows/netgen_MSVC2005.vcproj
index fdfbdcc4..a94c95af 100644
--- a/windows/netgen_MSVC2005.vcproj
+++ b/windows/netgen_MSVC2005.vcproj
@@ -20,6 +20,7 @@
 			OutputDirectory="Debug"
 			IntermediateDirectory="Debug"
 			ConfigurationType="1"
+			DeleteExtensionsOnClean="*.obj;*.ilk;*.tlb;*.tli;*.tlh;*.tmp;*.rsp;*.pgc;*.pgd;*.meta;*.exp;*.lib;$(TargetPath)"
 			BuildLogFile="$(SolutionDir)\BuildLog_$(ProjectName).htm"
 			>
 			<Tool
@@ -106,6 +107,7 @@
 			OutputDirectory="Release"
 			IntermediateDirectory="Release"
 			ConfigurationType="1"
+			DeleteExtensionsOnClean="*.obj;*.ilk;*.tlb;*.tli;*.tlh;*.tmp;*.rsp;*.pgc;*.pgd;*.meta;*.exp;*.lib;$(TargetPath)"
 			BuildLogFile="$(SolutionDir)\BuildLog_$(ProjectName).htm"
 			>
 			<Tool
@@ -197,6 +199,7 @@
 			OutputDirectory="$(ConfigurationName)"
 			IntermediateDirectory="$(ConfigurationName)"
 			ConfigurationType="1"
+			DeleteExtensionsOnClean="*.obj;*.ilk;*.tlb;*.tli;*.tlh;*.tmp;*.rsp;*.pgc;*.pgd;*.meta;*.exp;*.lib;$(TargetPath)"
 			BuildLogFile="$(SolutionDir)\BuildLog_$(ProjectName).htm"
 			>
 			<Tool
@@ -289,6 +292,7 @@
 			OutputDirectory="$(ConfigurationName)"
 			IntermediateDirectory="$(ConfigurationName)"
 			ConfigurationType="1"
+			DeleteExtensionsOnClean="*.obj;*.ilk;*.tlb;*.tli;*.tlh;*.tmp;*.rsp;*.pgc;*.pgd;*.meta;*.exp;*.lib;$(TargetPath)"
 			BuildLogFile="$(SolutionDir)\BuildLog_$(ProjectName).htm"
 			>
 			<Tool