diff --git a/haxetool/core.js b/haxetool/core.js
index fc02ac1..42c6dfa 100644
--- a/haxetool/core.js
+++ b/haxetool/core.js
@@ -1,3 +1,4 @@
+const os = require('os');
 const path = require('path');
 
 
@@ -43,17 +44,21 @@ class Config {
         }
     }
 
+    static absolutePath(file) {
+        const result = path.resolve(process.cwd(), path.normalize(file));
+        return os.type() === 'Windows_NT' ? result.split('\\').join('/') : result;
+    }
+
     update(params) {
         this._params.push(params);
         if (params.name !== undefined) this.name = params.name;
         if (params.main !== undefined) this.main = params.main;
-        const cwd = process.cwd();
-        if (params.sources !== undefined) this.sources = this.sources.concat(params.sources.map(item => path.resolve(cwd, item)));
-        if (params.assets !== undefined) this.assets = this.assets.concat(params.assets.map(item => path.resolve(cwd, item)));
+        if (params.sources !== undefined) this.sources = this.sources.concat(params.sources.map(Config.absolutePath));
+        if (params.assets !== undefined) this.assets = this.assets.concat(params.assets.map(Config.absolutePath));
         if (params.libs !== undefined) this.libs = this.libs.concat(Array.isArray(params.libs) ? params.libs : Object.entries(params.libs).map(([k, v]) => ({name: k, version: v})));
         if (params.macros !== undefined) this.macros = this.macros.concat(params.macros);
         if (params.meta !== undefined) this.meta = {...this.meta, ...params.meta};
-        if (this.meta.icon) this.icon = path.resolve(cwd, this.meta.icon)
+        if (this.meta.icon) this.icon = Config.absolutePath(this.meta.icon);
     }
 
     branch(params) {
diff --git a/haxetool/haxe.js b/haxetool/haxe.js
index 4974ead..3490a46 100755
--- a/haxetool/haxe.js
+++ b/haxetool/haxe.js
@@ -19,9 +19,9 @@ class Haxe extends Sdk {
 
     getBin(name) {
         if (Sdk.System.isWindows) {
-            return `${this.binPath}/${name}.exe`;
+            return path.join(this.binPath, name + '.exe');
         } else if (Sdk.System.isLinux) {
-            const binPath = `${this.binPath}/${name}`;
+            const binPath = path.join(this.binPath, name);
             if (fs.existsSync(binPath)) {
                 fs.chmodSync(binPath, 0o755);
             }
@@ -56,11 +56,13 @@ class Haxe extends Sdk {
 
     activate() {
         process.env.HAXE_VERSION = this.version;
-        process.env.HAXE_STD_PATH = `${this.binPath}/std`;
+        process.env.HAXE_STD_PATH = path.join(this.binPath, 'std');
         process.env.HAXE_HOME = this.binPath;
-        if (process.env.PATH.indexOf(this.binPath) === -1) {
-            process.env.PATH = `${process.env.PATH}:${this.binPath}`;
+        console.log('process.env.PATH A', process.env.PATH);
+        if (process.env.PATH.split(path.delimiter).indexOf(this.binPath) === -1) {
+            process.env.PATH = [process.env.PATH, this.binPath].join(path.delimiter);
         }
+        console.log('process.env.PATH B', process.env.PATH);
     }
 
     prepare() {
@@ -132,7 +134,7 @@ class Haxe extends Sdk {
     }
 
     install(packages) {
-        let promise = this.haxelib(['setup', `${this.path}/lib`]);
+        let promise = this.haxelib(['setup', path.join(this.path, 'lib')]);
         const next = (args) => () => {
             log(this.tag, colors.cyan('haxelib', 'install'), colors.magenta(args[1]));
             return this.haxelib(args);
@@ -176,7 +178,7 @@ class Haxe extends Sdk {
     }
 
     upgrade() {
-        let promise = this.haxelib(['setup', `${this.path}/lib`]);
+        let promise = this.haxelib(['setup', path.join(this.path, 'lib')]);
         promise = promise.then(() => this.haxelib(['upgrade', '--always']));
         return promise;
     }
diff --git a/haxetool/project.js b/haxetool/project.js
index 2378a7b..30daf34 100644
--- a/haxetool/project.js
+++ b/haxetool/project.js
@@ -86,7 +86,13 @@ class HaxeBuilder extends Builder {
     }
 
     prepare() {
-        return this.haxe.prepare();
+        let result = this.haxe.prepare().then(() => this.haxe.install(this.config.libs));
+        /*if (this.buildSystem === BuildSystem.OPENFL) {
+            result = result.then(() => {
+                return this.haxe.haxelib(['run', 'openfl', 'setup', this.platform]);
+            });
+        }*/
+        return result;
     }
 
     call() {
@@ -294,6 +300,7 @@ class LinuxRunner extends Runner {
 }
 
 Runner.register(Platform.LINUX, LinuxRunner);
+Runner.register(Platform.WINDOWS, LinuxRunner);  //ToDo:
 
 /**
  *
diff --git a/haxetool/sdk.js b/haxetool/sdk.js
index 570d56c..aaa568d 100755
--- a/haxetool/sdk.js
+++ b/haxetool/sdk.js
@@ -1,4 +1,5 @@
 const os = require('os');
+const path = require('path');
 const fs = require('fs');
 const ps = require('promise-streams');
 const got = require('got');
@@ -41,11 +42,11 @@ class Sdk {
     }
 
     static get dir() {
-        return Sdk._dir || `${os.homedir()}/sdk`;
+        return Sdk._dir || path.join(os.homedir(), 'sdk');
     }
 
     static path(name, version) {
-        return `${this.dir}/${name}/${version}`;
+        return path.join(this.dir, name, version);
     }
 
     constructor(name, version) {
@@ -85,14 +86,13 @@ class Sdk {
             let stream = got.stream(this.link);
             stream = stream.on('downloadProgress', (p) => bar.update(p.percent));
             if (this.link.endsWith('.zip')) {
-                const sep = '/';
                 stream = stream.pipe(unzip.Parse()).on('entry', (entry) => {
-                    const filePath = entry.path.split(sep).slice(1).join(sep);
+                    const filePath = entry.path.split('/').slice(1).join(path.sep);
                     if (filePath.length > 0) {
                         if (entry.type === 'Directory') {
-                            mkdirp(this.path + sep + filePath);
+                            mkdirp(path.join(this.path, path.normalize(filePath)));
                         } else if (entry.type === 'File') {
-                            entry.pipe(fs.createWriteStream(this.path + sep + filePath));
+                            entry.pipe(fs.createWriteStream(path.join(this.path, path.normalize(filePath))));
                         }
                     } else {
                         entry.autodrain();
diff --git a/package.json b/package.json
index 663f663..2c82622 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gulp-haxetool",
-  "version": "0.0.8",
+  "version": "0.0.9",
   "description": "HaXe Tool for Gulp",
   "main": "index.js",
   "dependencies": {