diff --git a/appveyor.yml b/appveyor.yml
index a894f798..d32f395a 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,27 @@
+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: .\build-win32.ps1
+- 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"
 artifacts:
-- path: cmakebuild\*.zip
+- path: cmakebuild\*.zip
\ No newline at end of file
diff --git a/build-win32.ps1 b/build-win32.ps1
deleted file mode 100644
index 5936b8a4..00000000
--- a/build-win32.ps1
+++ /dev/null
@@ -1,18 +0,0 @@
-#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($(get-location).Path, "lib\cmake\embree-2.10.0")
-cd ..
-cd ..
-
-# build tyrutils
-$env:Path += ";C:\cygwin64\bin" # for groff, used for manuals
-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"