diff --git a/src/core/gui.ts b/src/core/gui.ts
index 70718b0..595079d 100644
--- a/src/core/gui.ts
+++ b/src/core/gui.ts
@@ -571,16 +571,24 @@ namespace OS {
                 // first load it
                 loadApp(app)
                     .then((a) =>
-                        PM.createProcess(
-                            app,
-                            application[app],
-                            args
-                        ).catch((e) =>
-                            announcer.osfail(
-                                __("Unable to launch: {0}", app),
-                                e
+                        {
+                            if (!application[app]){
+                                return announcer.oserror(
+                                    __("{0} is not an application", app),
+                                    API.throwe(__("Application not found"))
+                                );
+                            }
+                            PM.createProcess(
+                                app,
+                                application[app],
+                                args
+                            ).catch((e) =>
+                                announcer.osfail(
+                                    __("Unable to launch: {0}", app),
+                                    e
+                                )
                             )
-                        )
+                        }
                     )
                     .catch((e) =>
                         announcer.osfail(__("Unable to launch: {0}", app), e)
diff --git a/src/core/vfs.ts b/src/core/vfs.ts
index 7f2473c..1f3bb28 100644
--- a/src/core/vfs.ts
+++ b/src/core/vfs.ts
@@ -1298,6 +1298,61 @@ namespace OS {
 
             register("^(home|desktop|os|Untitled)$", RemoteFileHandle);
 
+            
+            /**
+             * Package file is remote file ([[RemoteFileHandle]]) located either in
+             * the local user packages location or system packages
+             * location, it should be in the following format:
+             * 
+             * ```
+             * pkg://PKG_NAME/path/to/file
+             * 
+             * ```
+             * 
+             * The system will locale the package name PKG_NAME either in the system domain
+             * or in user domain and return the correct path to the package
+             *
+             * @export
+             * @class PackageFileHandle
+             * @extends {RemoteFileHandle}
+             */
+            export class PackageFileHandle extends RemoteFileHandle
+            {
+
+                /**
+                 *Creates an instance of PackageFileHandle.
+                 * @param {string} pkg_path package path in string
+                 * @memberof PackageFileHandle
+                 */
+                constructor(pkg_path: string) {
+                    var error:FormattedString|string;
+                    var pkg_name: string;
+                    super(pkg_path);
+                    // now find the correct path
+                    if(!this.genealogy || this.genealogy.length == 0)
+                    {
+                        error = __("Invalid package path");
+                        announcer.oserror(error, API.throwe(error));
+                        throw new Error(error.__());
+                    }
+                    else {
+                        // get the correct path of the package
+                        pkg_name = this.genealogy[0];
+                        if(OS.setting.system.packages[pkg_name])
+                        {
+                            this.setPath(OS.setting.system.packages[pkg_name].path);
+                        }
+                        else
+                        {
+                            error = __("Package not found {0}", pkg_name);
+                            announcer.oserror(error,API.throwe(error));
+                            throw new Error(error.__());
+                        }
+                    }
+                }
+            }
+            register("^pkg$", PackageFileHandle);
+
             /**
              * Application file is an AntOS special file allowing to
              * refer to an application as a regular file. Its protocol
@@ -1372,7 +1427,10 @@ namespace OS {
                         const result = [];
                         for (let k in OS.setting.system.packages) {
                             const v = OS.setting.system.packages[k];
-                            result.push(v);
+                            if(v.app)
+                            {
+                                result.push(v);
+                            }
                         }
                         return resolve({
                             result: result,
diff --git a/src/packages/CodePad/main.ts b/src/packages/CodePad/main.ts
index 238bf87..8201efb 100644
--- a/src/packages/CodePad/main.ts
+++ b/src/packages/CodePad/main.ts
@@ -1038,14 +1038,14 @@ namespace OS {
              * @returns {void}
              * @memberof CodePad
              */
-            private menuAction(dataid: string, r?: CodePad): void {
-                let me: any = this;
+            private menuAction(dataid: string, r?: CodePad): any {
+                let me: CodePad = this;
                 if (r) {
                     me = r;
                 }
                 switch (dataid) {
                     case "new":
-                        return me.openFile("Untitled".asFileHandle());
+                        return me.openFile("Untitled".asFileHandle() as CodePadFileHandle);
                     case "open":
                         return me
                             .openDialog("FileDialog", {
@@ -1065,7 +1065,7 @@ namespace OS {
                             })
                             .then(function (f: API.FileInfoType) {
                                 me.currdir = f.file.path.asFileHandle();
-                                return me.initSideBar();
+                                return me.toggleSideBar();
                             });
                     case "save":
                         me.currfile.cache = me.editor.getValue();
diff --git a/src/packages/CodePad/templates/sdk-package.tpl b/src/packages/CodePad/templates/sdk-package.tpl
index d853cbe..638139a 100644
--- a/src/packages/CodePad/templates/sdk-package.tpl
+++ b/src/packages/CodePad/templates/sdk-package.tpl
@@ -1,4 +1,5 @@
 {
+    "pkgname": "{0}",
     "app":"{0}",
     "name":"{0}",
     "description":"{0}",
diff --git a/src/packages/MarketPlace/main.ts b/src/packages/MarketPlace/main.ts
index cb221f6..e1baa74 100644
--- a/src/packages/MarketPlace/main.ts
+++ b/src/packages/MarketPlace/main.ts
@@ -393,7 +393,7 @@ namespace OS {
                                 .then((d: string) => {
                                     let name: string;
                                     const v = JSON.parse(d);
-                                    const pth = `${this.installdir}/${v.app}`;
+                                    const pth = `${this.installdir}/${v.pkgname?v.pkgname:v.app}`;
                                     const dir = [pth];
                                     const files = [];
                                     for (name in zip.files) {
@@ -408,13 +408,13 @@ namespace OS {
                                     return this.mkdirs(dir)
                                         .then(() => {
                                             return this.installFile(
-                                                v.app,
+                                                v.pkgname?v.pkgname:v.app,
                                                 zip,
                                                 files
                                             )
                                                 .then(() => {
                                                     const app_meta = {
-                                                        pkgname: v.app,
+                                                        pkgname: v.pkgname?v.pkgname:v.app,
                                                         name: v.name,
                                                         text: v.name,
                                                         icon: v.icon,
@@ -430,7 +430,7 @@ namespace OS {
                                                             : undefined,
                                                     };
                                                     v.text = v.name;
-                                                    v.filename = v.app;
+                                                    v.filename = v.pkgname?v.pkgname:v.app;
                                                     v.type = "app";
                                                     v.mime = "antos/app";
                                                     if (
@@ -442,7 +442,7 @@ namespace OS {
                                                     }
                                                     v.path = pth;
                                                     this.systemsetting.system.packages[
-                                                        v.app
+                                                        v.pkgname?v.pkgname:v.app
                                                     ] = v;
                                                     this.appDetail(app_meta);
                                                     return resolve(v.name);
diff --git a/src/packages/MarketPlace/package.json b/src/packages/MarketPlace/package.json
index 3e7ad9b..c8d2db5 100644
--- a/src/packages/MarketPlace/package.json
+++ b/src/packages/MarketPlace/package.json
@@ -6,7 +6,7 @@
         "author": "Xuan Sang LE",
         "email": "xsang.le@gmail.com"
     },
-    "version":"0.0.1-a",
+    "version":"0.1.5-a",
     "category":"System",
     "iconclass":"fa fa-adn",
     "mimes":["none"],