diff --git a/demo-shell/zip/demo.zip b/demo-shell/zip/demo.zip
deleted file mode 100644
index 771d323c30..0000000000
Binary files a/demo-shell/zip/demo.zip and /dev/null differ
diff --git a/package-lock.json b/package-lock.json
index 07f91cebaa..280002a92e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2226,8 +2226,7 @@
     "big-integer": {
       "version": "1.6.35",
       "resolved": "https://registry.npmjs.org/big-integer/-/big-integer-1.6.35.tgz",
-      "integrity": "sha512-jqLsX6dzmPHOhApAUyGwrpzqn3DXpdTqbOM6baPys7A423ys7IsTpcucDVGP0PmzxGsPYbW3xVOJ4SxAzI0vqQ==",
-      "dev": true
+      "integrity": "sha512-jqLsX6dzmPHOhApAUyGwrpzqn3DXpdTqbOM6baPys7A423ys7IsTpcucDVGP0PmzxGsPYbW3xVOJ4SxAzI0vqQ=="
     },
     "big.js": {
       "version": "3.2.0",
@@ -2238,7 +2237,6 @@
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/binary/-/binary-0.3.0.tgz",
       "integrity": "sha1-n2BVO8XOjDOG87VTz/R0Yq3sqnk=",
-      "dev": true,
       "requires": {
         "buffers": "~0.1.1",
         "chainsaw": "~0.1.0"
@@ -3019,8 +3017,7 @@
     "buffer-indexof-polyfill": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/buffer-indexof-polyfill/-/buffer-indexof-polyfill-1.0.1.tgz",
-      "integrity": "sha1-qfuAbOgUXVQoUQznLyeLs2OmOL8=",
-      "dev": true
+      "integrity": "sha1-qfuAbOgUXVQoUQznLyeLs2OmOL8="
     },
     "buffer-more-ints": {
       "version": "0.0.2",
@@ -3037,8 +3034,7 @@
     "buffers": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/buffers/-/buffers-0.1.1.tgz",
-      "integrity": "sha1-skV5w77U1tOWru5tmorn9Ugqt7s=",
-      "dev": true
+      "integrity": "sha1-skV5w77U1tOWru5tmorn9Ugqt7s="
     },
     "buildmail": {
       "version": "4.0.1",
@@ -3293,7 +3289,6 @@
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/chainsaw/-/chainsaw-0.1.0.tgz",
       "integrity": "sha1-XqtQsor+WAdNDVgpE4iCi15fvJg=",
-      "dev": true,
       "requires": {
         "traverse": ">=0.3.0 <0.4"
       }
@@ -5804,8 +5799,7 @@
     "fs.realpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
-      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
-      "dev": true
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
     },
     "fsevents": {
       "version": "1.2.4",
@@ -6339,7 +6333,6 @@
       "version": "1.0.11",
       "resolved": "https://registry.npmjs.org/fstream/-/fstream-1.0.11.tgz",
       "integrity": "sha1-XB+x8RdHcRTwYyoOtLcbPLD9MXE=",
-      "dev": true,
       "requires": {
         "graceful-fs": "^4.1.2",
         "inherits": "~2.0.0",
@@ -6558,7 +6551,6 @@
       "version": "7.1.2",
       "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
       "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
-      "dev": true,
       "requires": {
         "fs.realpath": "^1.0.0",
         "inflight": "^1.0.4",
@@ -7542,7 +7534,6 @@
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
       "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
-      "dev": true,
       "requires": {
         "once": "^1.3.0",
         "wrappy": "1"
@@ -8980,8 +8971,7 @@
     "listenercount": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/listenercount/-/listenercount-1.0.1.tgz",
-      "integrity": "sha1-hMinKrWcRyUyFIDJdeZQg0LnCTc=",
-      "dev": true
+      "integrity": "sha1-hMinKrWcRyUyFIDJdeZQg0LnCTc="
     },
     "lite-server": {
       "version": "2.4.0",
@@ -10183,8 +10173,7 @@
     "minimist": {
       "version": "0.0.8",
       "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-      "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-      "dev": true
+      "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
     },
     "mississippi": {
       "version": "2.0.0",
@@ -10245,7 +10234,6 @@
       "version": "0.5.1",
       "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
       "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
-      "dev": true,
       "requires": {
         "minimist": "0.0.8"
       }
@@ -11285,7 +11273,6 @@
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
       "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
-      "dev": true,
       "requires": {
         "wrappy": "1"
       }
@@ -13126,7 +13113,6 @@
       "version": "2.6.2",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.2.tgz",
       "integrity": "sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==",
-      "dev": true,
       "requires": {
         "glob": "^7.0.5"
       }
@@ -13845,8 +13831,7 @@
     "setimmediate": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz",
-      "integrity": "sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU=",
-      "dev": true
+      "integrity": "sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU="
     },
     "setprototypeof": {
       "version": "1.1.0",
@@ -15246,8 +15231,7 @@
     "traverse": {
       "version": "0.3.9",
       "resolved": "https://registry.npmjs.org/traverse/-/traverse-0.3.9.tgz",
-      "integrity": "sha1-cXuPIgzAu3tE5AUUwisui7xw2Lk=",
-      "dev": true
+      "integrity": "sha1-cXuPIgzAu3tE5AUUwisui7xw2Lk="
     },
     "tree-kill": {
       "version": "1.2.0",
@@ -15821,11 +15805,20 @@
       "integrity": "sha1-0vD3N9FrBhXnKmk17QQhRXLVb5c=",
       "dev": true
     },
+    "unzip-stream": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/unzip-stream/-/unzip-stream-0.3.0.tgz",
+      "integrity": "sha512-NG1h/MdGIX3HzyqMjyj1laBCmlPYhcO4xEy7gEqqzGiSLw7XqDQCnY4nYSn5XSaH8mQ6TFkaujrO8d/PIZN85A==",
+      "dev": true,
+      "requires": {
+        "binary": "^0.3.0",
+        "mkdirp": "^0.5.1"
+      }
+    },
     "unzipper": {
       "version": "0.9.3",
       "resolved": "https://registry.npmjs.org/unzipper/-/unzipper-0.9.3.tgz",
       "integrity": "sha512-lDnqm89o0UUN/4v1V5SFe9iwMnm0oa8t+f6c0QhH6DeqnUe2CImuiz/oyugDp5xGHu/jQN3l9Dt5gC/DqOkZCg==",
-      "dev": true,
       "requires": {
         "big-integer": "^1.6.17",
         "binary": "~0.3.0",
@@ -15841,14 +15834,12 @@
         "bluebird": {
           "version": "3.4.7",
           "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.4.7.tgz",
-          "integrity": "sha1-9y12C+Cbf3bQjtj66Ysomo0F+rM=",
-          "dev": true
+          "integrity": "sha1-9y12C+Cbf3bQjtj66Ysomo0F+rM="
         },
         "duplexer2": {
           "version": "0.1.4",
           "resolved": "https://registry.npmjs.org/duplexer2/-/duplexer2-0.1.4.tgz",
           "integrity": "sha1-ixLauHjA1p4+eJEFFmKjL8a93ME=",
-          "dev": true,
           "requires": {
             "readable-stream": "^2.0.2"
           }
@@ -16787,8 +16778,7 @@
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-      "dev": true
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
     "write-file-atomic": {
       "version": "2.3.0",
diff --git a/package.json b/package.json
index 8672275d3f..97c9ce99de 100644
--- a/package.json
+++ b/package.json
@@ -168,7 +168,7 @@
     "tslint": "5.9.1",
     "typedoc": "^0.11.1",
     "typescript": "2.9.2",
-    "unzipper": "^0.9.3",
+    "unzip-stream": "^0.3.0",
     "url-join": "^4.0.0",
     "webpack-bundle-analyzer": "^2.13.1",
     "webpack-cli": "^3.1.0",
diff --git a/scripts/download-build-in-cs.js b/scripts/download-build-in-cs.js
index 64a9443b3d..d71bff956f 100755
--- a/scripts/download-build-in-cs.js
+++ b/scripts/download-build-in-cs.js
@@ -5,7 +5,8 @@ var http = require('http');
 var fs = require('fs');
 var path = require('path');
 var archiver = require('archiver');
-var unzipper = require('unzipper');
+var unzip = require('unzip-stream');
+var stream = require('unzip-stream');
 
 var exec = require('child_process').exec;
 
@@ -63,28 +64,26 @@ async function main() {
         file.on('finish', async () => {
             console.log('Unzip Demo ' + path.join(__dirname, '../demo.zip'));
             fs.createReadStream(path.join(__dirname, '../demo.zip'))
-                .pipe(unzipper.Extract({path: path.join(__dirname, '../demo-shell')}))
+                .pipe(unzip.Extract({path: path.join(__dirname, '../demo-shell')}))
                 .on('finish', () => {
 
-                    let oldFolder = path.join(__dirname, `../demo-shell/demo.zip`)
-                    let newFolder = path.join(__dirname, `../demo-shell/${outputFolder}`)
+                    setTimeout(() => {
+                        let oldFolder = path.join(__dirname, `../demo-shell/demo.zip`)
+                        let newFolder = path.join(__dirname, `../demo-shell/${outputFolder}`)
 
-                    console.log(`mv ${oldFolder} ${newFolder}`);
+                        fs.rename(oldFolder, newFolder, (err) => {
+                            // if (err) throw err;
+                            console.log('renamed complete');
+                        });
 
-                    exec(`mv ${oldFolder} ${newFolder}`, (err, stdout, stderr) => {
-                        if (err) {
-                            console.log(`err: ${err}`);
-                            return;
-                        }
-
-                        if(program.baseHref) {
+                        if (program.baseHref) {
                             replaceHrefInIndex(outputFolder);
                         }
-                    });
+                    }, 10000);
+
                 })
         });
     });
-
 }
 
 main();