diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a46bb2a1..b96141dd 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,6 +9,7 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
+          - windows-latest
         php-version:
           - "7.2"
           - "7.3"
@@ -33,12 +34,20 @@ jobs:
         run: composer install --prefer-source --optimize-autoloader --ansi --no-interaction --no-dev
       - name: Install Box
         run: composer global require 'kherge/box=~2.7' --prefer-source
-      - name: Build pickle.phar
-        run: ~/.composer/vendor/bin/box build
+      - name: Build pickle.phar on Ubuntu
+        if: startsWith(matrix.os, 'ubuntu')
+        run: |
+          "$(composer global config bin-dir --absolute)/box" build
+      - name: Build pickle.phar on Windows
+        if: startsWith(matrix.os, 'windows')
+        run: |
+          & "$(composer global config bin-dir --absolute)/box.bat" build
       - name: Install Composer dependencies (including dev, preferring dist)
         run: composer install --optimize-autoloader --ansi --no-interaction
       - name: Run Behat
-        run: PICKLE_BEHAT_PROCESS_TIMEOUT=0 vendor/bin/behat --format=progress
+        env:
+          PICKLE_BEHAT_PROCESS_TIMEOUT: 0
+        run: vendor/bin/behat --format=progress
       - name: Download Ocular
         run: curl -sSLf -o ocular.phar https://scrutinizer-ci.com/ocular.phar
       - name: Upload code coverage
diff --git a/features/bootstrap/FeatureContext.php b/features/bootstrap/FeatureContext.php
index b1795b0b..b06fb36f 100644
--- a/features/bootstrap/FeatureContext.php
+++ b/features/bootstrap/FeatureContext.php
@@ -86,7 +86,11 @@ public function prepare()
 
     private function moveToNewPath($path)
     {
-        $newWorkingDir = $this->workingDir .'/' . $path;
+        if ((string) $this->workingDir === '') {
+            $newWorkingDir = $path;
+        } else {
+            $newWorkingDir = $this->workingDir .'/' . $path;
+        }
 
         if (!file_exists($newWorkingDir)) {
             mkdir($newWorkingDir, 0777, true);
diff --git a/features/pickle/convert-json.feature b/features/pickle/convert-json.feature
index 235ad0ae..40b18c5f 100644
--- a/features/pickle/convert-json.feature
+++ b/features/pickle/convert-json.feature
@@ -80,7 +80,7 @@ Feature: convert package.xml to composer.json
     When I run "pickle convert"
     Then it should fail with:
       """
-      The path '%%TEST_DIR%%/empty-dir' d
+      empty-dir' doesn't contain package.xml
       """
 
     Given I am in the ".." path
diff --git a/src/Package/PHP/Command/Install/Windows/Binary.php b/src/Package/PHP/Command/Install/Windows/Binary.php
index e61eb17e..3e5b4585 100644
--- a/src/Package/PHP/Command/Install/Windows/Binary.php
+++ b/src/Package/PHP/Command/Install/Windows/Binary.php
@@ -36,7 +36,8 @@
 
 namespace Pickle\Package\PHP\Command\Install\Windows;
 
-use Symfony\Component\Console\Output\OutputInterface as OutputInterface;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
 use Pickle\Base\Util\FileOps;
 use Pickle\Engine;
 use Pickle\Base\Archive;
@@ -50,6 +51,7 @@ class Binary
     private $extName;
     private $extVersion;
     private $progress = null;
+    private $input = null;
     private $output = null;
     private $extDll = null;
 
@@ -72,6 +74,11 @@ public function setProgress($progress)
         $this->progress = $progress;
     }
 
+    public function setInput(InputInterface $input)
+    {
+        $this->input = $input;
+    }
+
     public function setOutput(OutputInterface $output)
     {
         $this->output = $output;