diff --git a/sketches/atlas/build.bat b/sketches/atlas/build.bat
index 5878b50..24e6644 100644
--- a/sketches/atlas/build.bat
+++ b/sketches/atlas/build.bat
@@ -3,4 +3,4 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /LIBPATH:../../build/bin orca.dll.lib /out:bin/example_atlas.exe
-cp ../../build/bin/orca.dll bin/
\ No newline at end of file
+copy ..\..\build\bin\orca.dll bin
diff --git a/sketches/canvas/build.bat b/sketches/canvas/build.bat
index 3a3e9e5..7d73c69 100644
--- a/sketches/canvas/build.bat
+++ b/sketches/canvas/build.bat
@@ -2,4 +2,4 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /LIBPATH:../../build/bin orca.dll.lib /out:bin/example_canvas.exe
-cp ../../build/bin/orca.dll bin/
\ No newline at end of file
+copy ..\..\build\bin\orca.dll bin
diff --git a/sketches/image/build.bat b/sketches/image/build.bat
index 77e58c4..a43c112 100644
--- a/sketches/image/build.bat
+++ b/sketches/image/build.bat
@@ -3,4 +3,4 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /LIBPATH:../../build/bin orca.dll.lib /out:bin/example_image.exe
-cp ../../build/bin/orca.dll bin/
\ No newline at end of file
+copy ..\..\build\bin\orca.dll bin
diff --git a/sketches/perf_text/build.bat b/sketches/perf_text/build.bat
index dc25291..25bdd7c 100644
--- a/sketches/perf_text/build.bat
+++ b/sketches/perf_text/build.bat
@@ -3,4 +3,4 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /LIBPATH:../../build/bin orca.dll.lib /out:bin/example_perf_text.exe
-cp ../../build/bin/orca.dll bin/
\ No newline at end of file
+copy ..\..\build\bin\orca.dll bin
diff --git a/sketches/polygon/build.bat b/sketches/polygon/build.bat
index 58607f3..ede0d52 100644
--- a/sketches/polygon/build.bat
+++ b/sketches/polygon/build.bat
@@ -3,4 +3,4 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /LIBPATH:../../build/bin orca.dll.lib /out:bin/example_poly.exe
-cp ../../build/bin/orca.dll bin/
\ No newline at end of file
+copy ..\..\build\bin\orca.dll bin
diff --git a/sketches/render_thread/build.bat b/sketches/render_thread/build.bat
index fa86b8a..5f3cde1 100644
--- a/sketches/render_thread/build.bat
+++ b/sketches/render_thread/build.bat
@@ -2,4 +2,4 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /MANIFEST:EMBED /MANIFESTINPUT:../../src/app/win32_manifest.xml /LIBPATH:../../build/bin orca.dll.lib /out:bin/example_poly.exe
-cp ../../build/bin/orca.dll bin/
+copy ..\..\build\bin\orca.dll bin
diff --git a/sketches/simpleWindow/build.bat b/sketches/simpleWindow/build.bat
index 186db21..691068e 100644
--- a/sketches/simpleWindow/build.bat
+++ b/sketches/simpleWindow/build.bat
@@ -2,4 +2,4 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /LIBPATH:../../build/bin orca.dll.lib user32.lib /out:bin/example_simple_window.exe
-cp ../../build/bin/orca.dll bin/
\ No newline at end of file
+copy ..\..\build\bin\orca.dll bin
diff --git a/sketches/smooth_resize/build.bat b/sketches/smooth_resize/build.bat
index b7f97f2..2beaa2c 100644
--- a/sketches/smooth_resize/build.bat
+++ b/sketches/smooth_resize/build.bat
@@ -3,4 +3,4 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /LIBPATH:../../build/bin orca.dll.lib /out:bin/example_smooth_resize.exe
-cp ../../build/bin/orca.dll bin/
+copy ..\..\build\bin\orca.dll bin
diff --git a/sketches/surface_sharing/build.bat b/sketches/surface_sharing/build.bat
index 8b687da..e122dd2 100644
--- a/sketches/surface_sharing/build.bat
+++ b/sketches/surface_sharing/build.bat
@@ -3,6 +3,6 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /LIBPATH:../../build/bin orca.dll.lib /out:bin/example_surface_sharing.exe
-cp ../../build/bin/orca.dll bin/
-cp ../../ext/angle/bin/libEGL.dll bin/
-cp ../../ext/angle/bin/libGLESv2.dll bin/
\ No newline at end of file
+copy ..\..\build\bin\orca.dll bin
+copy ..\..\ext\angle\bin\libEGL.dll bin
+copy ..\..\ext\angle\bin\libGLESv2.dll bin
diff --git a/sketches/tiger/build.bat b/sketches/tiger/build.bat
index d91f7d7..557618b 100644
--- a/sketches/tiger/build.bat
+++ b/sketches/tiger/build.bat
@@ -3,4 +3,4 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /LIBPATH:../../build/bin orca.dll.lib /out:bin/example_tiger.exe
-cp ../../build/bin/orca.dll bin/
+copy ..\..\build\bin\orca.dll bin
diff --git a/sketches/triangleGL/build.bat b/sketches/triangleGL/build.bat
index 0f14c1d..d668cd7 100644
--- a/sketches/triangleGL/build.bat
+++ b/sketches/triangleGL/build.bat
@@ -3,4 +3,4 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /LIBPATH:../../build/bin orca.dll.lib /out:bin/example_gl_triangle.exe
-cp ../../build/bin/orca.dll bin/
+copy ..\..\build\bin\orca.dll bin
diff --git a/sketches/triangleGLES/build.bat b/sketches/triangleGLES/build.bat
index df09644..46119f0 100644
--- a/sketches/triangleGLES/build.bat
+++ b/sketches/triangleGLES/build.bat
@@ -3,6 +3,6 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /LIBPATH:../../build/bin orca.dll.lib /out:bin/example_gles_triangle.exe
-cp ../../build/bin/orca.dll bin/
-cp ../../ext/angle/bin/libEGL.dll bin/
-cp ../../ext/angle/bin/libGLESv2.dll bin/
\ No newline at end of file
+copy ..\..\build\bin\orca.dll bin
+copy ..\..\ext\angle\bin\libEGL.dll bin
+copy ..\..\ext\angle\bin\libGLESv2.dll bin
diff --git a/sketches/ui/build.bat b/sketches/ui/build.bat
index 03534c3..7ffbcea 100644
--- a/sketches/ui/build.bat
+++ b/sketches/ui/build.bat
@@ -3,4 +3,4 @@ set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /
 
 if not exist "bin" mkdir bin
 cl /we4013 /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% main.c /link /LIBPATH:../../build/bin orca.dll.lib /out:bin/example_ui.exe
-cp ../../build/bin/orca.dll bin/
+copy ..\..\build\bin\orca.dll bin