Reenable build configurations.
diff --git a/appveyor.yml b/appveyor.yml
index 8a9b6f7..a40d35f 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -7,42 +7,42 @@
       TRIPLET: x64-windows
       CMAKE_OPTS: "-DBUILD_SHARED_LIBS=off"
       CMAKE_CONFIG: Release
-#    - GENERATOR: "Visual Studio 15 2017 Win64"
-#      TRIPLET: x64-windows
-#      CMAKE_OPTS: "-DBUILD_SHARED_LIBS=off"
-#      CMAKE_CONFIG: Debug
-#    - GENERATOR: "Visual Studio 15 2017 Win64"
-#      TRIPLET: x64-uwp
-#      CMAKE_OPTS: "-DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION=10.0"
-#      CMAKE_CONFIG: Release
-#   - GENERATOR: "Visual Studio 15 2017"
-#      TRIPLET: x86-windows
-#      CMAKE_OPTS: "-DBUILD_SHARED_LIBS=off"
-#      CMAKE_CONFIG: Release
-#    - GENERATOR: "Visual Studio 15 2017"
-#      TRIPLET: x86-windows
-#      CMAKE_OPTS: "-DBUILD_SHARED_LIBS=off"
-#      CMAKE_CONFIG: Debug
-#    - GENERATOR: "Visual Studio 15 2017"
-#      TRIPLET: x86-uwp
-#      CMAKE_OPTS: "-DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION=10.0"
-#      CMAKE_CONFIG: Release
-#    - GENERATOR: "Visual Studio 15 2017 ARM"
-#      TRIPLET: arm-windows
-#      CMAKE_OPTS: "-DENABLE_OPENSSL=off"
-#      CMAKE_CONFIG: Release
-#    - GENERATOR: "Visual Studio 15 2017 ARM"
-#      TRIPLET: arm-uwp
-#      CMAKE_OPTS: "-DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION=10.0 -DENABLE_OPENSSL=off"
-#      CMAKE_CONFIG: Release
-#    - GENERATOR: "Visual Studio 15 2017"
-#      TRIPLET: arm64-windows
-#      CMAKE_OPTS: "-AARM64 -DENABLE_OPENSSL=off"
-#      CMAKE_CONFIG: Release
-#    - GENERATOR: "Visual Studio 15 2017"
-#      TRIPLET: arm64-uwp
-#      CMAKE_OPTS: "-AARM64 -DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION=10.0 -DENABLE_OPENSSL=off"
-#      CMAKE_CONFIG: Release
+    - GENERATOR: "Visual Studio 15 2017 Win64"
+      TRIPLET: x64-windows
+      CMAKE_OPTS: "-DBUILD_SHARED_LIBS=off"
+      CMAKE_CONFIG: Debug
+    - GENERATOR: "Visual Studio 15 2017 Win64"
+      TRIPLET: x64-uwp
+      CMAKE_OPTS: "-DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION=10.0"
+      CMAKE_CONFIG: Release
+   - GENERATOR: "Visual Studio 15 2017"
+      TRIPLET: x86-windows
+      CMAKE_OPTS: "-DBUILD_SHARED_LIBS=off"
+      CMAKE_CONFIG: Release
+    - GENERATOR: "Visual Studio 15 2017"
+      TRIPLET: x86-windows
+      CMAKE_OPTS: "-DBUILD_SHARED_LIBS=off"
+      CMAKE_CONFIG: Debug
+    - GENERATOR: "Visual Studio 15 2017"
+      TRIPLET: x86-uwp
+      CMAKE_OPTS: "-DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION=10.0"
+      CMAKE_CONFIG: Release
+    - GENERATOR: "Visual Studio 15 2017 ARM"
+      TRIPLET: arm-windows
+      CMAKE_OPTS: "-DENABLE_OPENSSL=off"
+      CMAKE_CONFIG: Release
+    - GENERATOR: "Visual Studio 15 2017 ARM"
+      TRIPLET: arm-uwp
+      CMAKE_OPTS: "-DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION=10.0 -DENABLE_OPENSSL=off"
+      CMAKE_CONFIG: Release
+    - GENERATOR: "Visual Studio 15 2017"
+      TRIPLET: arm64-windows
+      CMAKE_OPTS: "-AARM64 -DENABLE_OPENSSL=off"
+      CMAKE_CONFIG: Release
+    - GENERATOR: "Visual Studio 15 2017"
+      TRIPLET: arm64-uwp
+      CMAKE_OPTS: "-AARM64 -DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION=10.0 -DENABLE_OPENSSL=off"
+      CMAKE_CONFIG: Release
 
 before_build:
   cmd: >-