diff --git a/appveyor.yml b/appveyor.yml
index d32f395a..5670dad3 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,27 +1,7 @@
-platform:
-- x86
-- x64
-
 version: 1.0.{build}
-install:
-- ps: Invoke-WebRequest 'https://github.com/embree/embree/releases/download/v2.10.0/embree-2.10.0.x64.windows.zip' -OutFile 'embree64.zip'
-- ps: 7z x embree64.zip -oc:\
-- ps: Invoke-WebRequest 'https://github.com/embree/embree/releases/download/v2.10.0/embree-2.10.0.win32.windows.zip' -OutFile 'embree.zip'
-- ps: 7z x embree.zip -oc:\
 build_script:
 - ps: >-
     $env:Path += ";C:\cygwin64\bin"
-
-    mkdir cmakebuild
-
-    cd cmakebuild
-
-    If ($env:Platform -Match "x64") {
-      cmake .. -T v140_xp -Dembree_DIR="c:/embree-2.10.0.x64.windows/lib/cmake/embree-2.10.0" -DCMAKE_GENERATOR_PLATFORM=x64
-    } Else {
-      cmake .. -T v140_xp -Dembree_DIR="c:/embree-2.10.0.win32.windows/lib/cmake/embree-2.10.0"
-    }
-
-    msbuild PACKAGE.vcxproj /p:Configuration=Release /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"
+    .\build-win32.ps
 artifacts:
 - path: cmakebuild\*.zip
\ No newline at end of file
diff --git a/build-win32.ps b/build-win32.ps
new file mode 100644
index 00000000..c71aeab9
--- /dev/null
+++ b/build-win32.ps
@@ -0,0 +1,17 @@
+#build embree
+Invoke-WebRequest 'https://github.com/embree/embree/archive/v2.10.0.zip' -OutFile 'embree.zip'
+7z x embree.zip
+cd embree-2.10.0
+mkdir build
+cd build
+cmake .. -T v140_xp -DENABLE_ISPC_SUPPORT=NO -DENABLE_TUTORIALS=NO -DRTCORE_TASKING_SYSTEM=INTERNAL -DCMAKE_INSTALL_PREFIX="$(get-location)"
+msbuild INSTALL.vcxproj /p:Configuration=Release
+$EmbreeInstallDir = [io.path]::combine($(get-location).Path, "lib\cmake\embree-2.10.0")
+cd ..
+cd ..
+
+# build tyrutils
+mkdir cmakebuild
+cd cmakebuild
+cmake .. -T v140_xp -Dembree_DIR="$EmbreeInstallDir"
+msbuild PACKAGE.vcxproj /p:Configuration=Release /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"