diff --git a/appveyor.yml b/appveyor.yml
index f74b7b8..7937eac 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -73,4 +73,9 @@ test_script:
  - node --version
  - npm --version
  # run tests
+ - cd
+ - npm run tests-only
+ - 'subst X: ..'
+ - 'cd /d X:\resolve'
+ - cd
  - npm run tests-only
diff --git a/lib/async.js b/lib/async.js
index 2b0f0f3..60d2555 100644
--- a/lib/async.js
+++ b/lib/async.js
@@ -6,7 +6,7 @@ var nodeModulesPaths = require('./node-modules-paths');
 var normalizeOptions = require('./normalize-options');
 var isCore = require('is-core-module');
 
-var realpathFS = fs.realpath && typeof fs.realpath.native === 'function' ? fs.realpath.native : fs.realpath;
+var realpathFS = process.platform !== 'win32' && fs.realpath && typeof fs.realpath.native === 'function' ? fs.realpath.native : fs.realpath;
 
 var homedir = getHomedir();
 var defaultPaths = function () {
diff --git a/lib/sync.js b/lib/sync.js
index 3246989..0b6cd58 100644
--- a/lib/sync.js
+++ b/lib/sync.js
@@ -6,7 +6,7 @@ var caller = require('./caller');
 var nodeModulesPaths = require('./node-modules-paths');
 var normalizeOptions = require('./normalize-options');
 
-var realpathFS = fs.realpathSync && typeof fs.realpathSync.native === 'function' ? fs.realpathSync.native : fs.realpathSync;
+var realpathFS = process.platform !== 'win32' && fs.realpathSync && typeof fs.realpathSync.native === 'function' ? fs.realpathSync.native : fs.realpathSync;
 
 var homedir = getHomedir();
 var defaultPaths = function () {