diff --git a/.gitignore b/.gitignore
index 93bcbfd..aefb719 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 *.swp
 node_modules
 npm-debug.log
+.idea
diff --git a/lib/file.js b/lib/file.js
index 1eb92df..04a32d1 100644
--- a/lib/file.js
+++ b/lib/file.js
@@ -73,9 +73,8 @@ exports.mkdirs = function (_path, mode, callback) {
 // @mode: the file mode to create the directory with:
 //    ex: file.mkdirs("/tmp/dir", 755, function () {})
 exports.mkdirsSync = function (_path, mode) {
-  if (_path[0] !== path.sep) {
-    _path = path.join(process.cwd(), _path)
-  }
+
+  _path = path.resolve(process.cwd(), _path);
 
   var dirs = _path.split(path.sep);
   var walker = [dirs.shift()];
@@ -182,16 +181,26 @@ exports.walkSync = function (start, callback) {
 exports.path = {};
 
 exports.path.abspath = function (to) {
+  to = path.normalize(to);
   var from;
-  switch (to.charAt(0)) {
-    case "~": from = process.env.HOME; to = to.substr(1); break
-    case path.sep: from = ""; break
-    default : from = process.cwd(); break
+
+  if (to.charAt(0) === '~') {
+    from = "";
+    to = process.env.HOME + to.substr(1);
   }
-  return path.join(from, to);
+  else if (to.indexOf(path.sep) === 0) {
+    from = "";
+  }
+  else {
+    from = process.cwd();
+  }
+  return path.resolve(from, to);
 }
 
 exports.path.relativePath = function (base, compare) {
+  base = path.normalize(base);
+  compare = path.normalize(compare);
+
   base = base.split(path.sep);
   compare = compare.split(path.sep);
 
diff --git a/package.json b/package.json
index 526bdfd..a24edec 100644
--- a/package.json
+++ b/package.json
@@ -13,5 +13,8 @@
   { "url" : "http://github.com/aconbere/node-file-utils" }
 , "main" : "./lib/file"
 , "license": "MIT"
-, "devDependencies": { "mocha": "1.9.x" }
+, "devDependencies": { "mocha": "1.9.x" },
+  "scripts": {
+    "test": "mocha tests"
+  }
 }
diff --git a/tests/file_spec.js b/tests/file_spec.js
index 38477b5..92cc1d1 100644
--- a/tests/file_spec.js
+++ b/tests/file_spec.js
@@ -26,10 +26,21 @@ describe("file#mkdirs", function () {
   it("should make all the directories in the tree", function (done) {
     file.mkdirs("/test/test/test/test", 0755, function(err) {
       if (err) throw new Error(err);
-      assert.equal(madeDirs[0], "/test");
-      assert.equal(madeDirs[1], "/test/test");
-      assert.equal(madeDirs[2], "/test/test/test");
-      assert.equal(madeDirs[3], "/test/test/test/test");
+      assert.equal(madeDirs[0], path.resolve("/test"));
+      assert.equal(madeDirs[1], path.resolve("/test/test"));
+      assert.equal(madeDirs[2], path.resolve("/test/test/test"));
+      assert.equal(madeDirs[3], path.resolve("/test/test/test/test"));
+      done();
+    });
+  });
+
+  it("should make all the directories in the tree on windows", function (done) {
+    file.mkdirs(path.resolve("/test/test/test/test"), 0755, function(err) {
+      if (err) throw new Error(err);
+      assert.equal(madeDirs[0], path.resolve("/test"));
+      assert.equal(madeDirs[1], path.resolve("/test/test"));
+      assert.equal(madeDirs[2], path.resolve("/test/test/test"));
+      assert.equal(madeDirs[3], path.resolve("/test/test/test/test"));
       done();
     });
   });
@@ -45,10 +56,10 @@ describe("file#mkdirsSync", function () {
     file.mkdirsSync("/test/test/test/test", 0755, function(err) {
       if (err) throw new Error(err);
     });
-    assert.equal(madeDirs[0], "/test");
-    assert.equal(madeDirs[1], "/test/test");
-    assert.equal(madeDirs[2], "/test/test/test");
-    assert.equal(madeDirs[3], "/test/test/test/test");
+    assert.equal(madeDirs[0], path.resolve("/test"));
+    assert.equal(madeDirs[1], path.resolve("/test/test"));
+    assert.equal(madeDirs[2], path.resolve("/test/test/test"));
+    assert.equal(madeDirs[3], path.resolve("/test/test/test/test"));
     done();
   });
 });
@@ -82,13 +93,13 @@ describe("file.path#abspath", function () {
   });
 
   it("should convert ~ to the home directory", function (done) {
-    assert.equal(file.path.abspath("~"), file.path.join(process.env.HOME, ""));
-    assert.equal(file.path.abspath("~/test/dir"), file.path.join(process.env.HOME, "test/dir"));
+    assert.equal(file.path.abspath("~"), path.resolve(process.env.HOME));
+    assert.equal(file.path.abspath("~/test/dir"), path.resolve(process.env.HOME, "test/dir"));
     done();
   });
 
   it("should not convert paths begining with /", function (done) {
-    assert.equal(file.path.abspath("/x/y/z"), "/x/y/z");
+    assert.equal(file.path.abspath("/x/y/z"), path.resolve("/x/y/z"));
     done();
   });
 });