diff --git a/__init__.py b/__init__.py
index 0613020..90fc302 100644
--- a/__init__.py
+++ b/__init__.py
@@ -20,7 +20,7 @@ import nodes
 import torch
 
 
-version = [1, 16]
+version = [1, 17]
 version_str = f"V{version[0]}.{version[1]}" + (f'.{version[2]}' if len(version) > 2 else '')
 print(f"### Loading: ComfyUI-Manager ({version_str})")
 
@@ -1198,6 +1198,7 @@ class GitProgress(RemoteProgress):
         self.pbar.pos = 0
         self.pbar.refresh()
 
+
 def is_valid_url(url):
     try:
         result = urlparse(url)
@@ -1205,6 +1206,7 @@ def is_valid_url(url):
     except ValueError:
         return False
 
+
 def gitclone_install(files):
     print(f"install: {files}")
     for url in files:
@@ -1240,6 +1242,11 @@ def gitclone_install(files):
     return True
 
 
+def pip_install(packages):
+    install_cmd = ['#FORCE', sys.executable, "-m", "pip", "install", '-U'] + packages
+    try_install_script('pip install via manager', '.', install_cmd)
+
+
 import platform
 import subprocess
 import time
@@ -1430,6 +1437,16 @@ async def install_custom_node_git_url(request):
     return web.Response(status=400)
 
 
+@server.PromptServer.instance.routes.get("/customnode/install/pip")
+async def install_custom_node_git_url(request):
+    res = False
+    if "packages" in request.rel_url.query:
+        packages = request.rel_url.query['packages']
+        pip_install(packages.split(' '))
+
+    return web.Response(status=200)
+
+
 @server.PromptServer.instance.routes.post("/customnode/uninstall")
 async def uninstall_custom_node(request):
     json_data = await request.json()
diff --git a/js/comfyui-manager.js b/js/comfyui-manager.js
index 282b260..063851e 100644
--- a/js/comfyui-manager.js
+++ b/js/comfyui-manager.js
@@ -7,13 +7,13 @@ import { CustomNodesInstaller } from "./custom-nodes-downloader.js";
 import { AlternativesInstaller } from "./a1111-alter-downloader.js";
 import { SnapshotManager } from "./snapshot.js";
 import { ModelInstaller } from "./model-downloader.js";
-import { manager_instance, setManagerInstance, install_via_git_url, rebootAPI } from  "./common.js";
+import { manager_instance, setManagerInstance, install_via_git_url, install_pip, rebootAPI } from  "./common.js";
 
 var docStyle = document.createElement('style');
 docStyle.innerHTML = `
 #cm-manager-dialog {
 	width: 1000px;
-	height: 420px;
+	height: 450px;
 	box-sizing: content-box;
 	z-index: 10000;
 }
@@ -782,6 +782,18 @@ class ManagerMenuDialog extends ComfyDialog {
 								SnapshotManager.instance = new SnapshotManager(app, self);
 								SnapshotManager.instance.show();
 							}
+					}),
+					$el("button.cm-experimental-button", {
+						type: "button",
+						textContent: "Install PIP packages",
+						onclick:
+							() => {
+								var url = prompt("Please enumerate the pip packages to be installed.\n\nExample: insightface opencv-python-headless>=4.1.1\n", "");
+
+								if (url !== null) {
+									install_pip(url, self);
+								}
+							}
 					})
 				]),
 		];
diff --git a/js/common.js b/js/common.js
index c507ddd..4719517 100644
--- a/js/common.js
+++ b/js/common.js
@@ -80,10 +80,35 @@ export function setManagerInstance(obj) {
 }
 
 function isValidURL(url) {
+	if(url.includes('&'))
+		return false;
+
     const pattern = /^(https?|ftp):\/\/[^\s/$.?#].[^\s]*$/;
     return pattern.test(url);
 }
 
+export async function install_pip(packages) {
+	if(packages.includes('&'))
+        app.ui.dialog.show(`Invalid PIP package enumeration: '${packages}'`);
+
+    const res = await api.fetchApi(`/customnode/install/pip?packages=${packages}`);
+
+    if(res.status == 200) {
+        app.ui.dialog.show(`PIP package installation is processed.<br>To apply the pip packages, please click the <button id='cm-reboot-button'><font size='3px'>RESTART</font></button> button in ComfyUI.`);
+
+		const rebootButton = document.getElementById('cm-reboot-button');
+		const self = this;
+
+		rebootButton.addEventListener("click", rebootAPI);
+
+        app.ui.dialog.element.style.zIndex = 10010;
+    }
+    else {
+        app.ui.dialog.show(`Failed to install '${packages}'<BR>See terminal log.`);
+        app.ui.dialog.element.style.zIndex = 10010;
+    }
+}
+
 export async function install_via_git_url(url, manager_dialog) {
 	if(!url) {
 		return;
diff --git a/prestartup_script.py b/prestartup_script.py
index 8d472cb..474744f 100644
--- a/prestartup_script.py
+++ b/prestartup_script.py
@@ -410,13 +410,16 @@ if os.path.exists(script_list_path):
             try:
                 script = eval(line)
 
-                if script[1].startswith('#'):
+                if script[1].startswith('#') and script[1] != '#FORCE':
                     if script[1] == "#LAZY-INSTALL-SCRIPT":
                         execute_lazy_install_script(script[0], script[2])
 
                 elif os.path.exists(script[0]):
-                    if 'pip' in script[1:] and 'install' in script[1:] and is_installed(script[-1]):
-                        continue
+                    if script[1] == "#FORCE":
+                        del script[1]
+                    else:
+                        if 'pip' in script[1:] and 'install' in script[1:] and is_installed(script[-1]):
+                            continue
 
                     print(f"\n## ComfyUI-Manager: EXECUTE => {script[1:]}")
                     print(f"\n## Execute install/(de)activation script for '{script[0]}'")