diff --git a/src/main/ipcs/bs-launcher-ipcs.ts b/src/main/ipcs/bs-launcher-ipcs.ts
index c453ac49..b85c1d07 100644
--- a/src/main/ipcs/bs-launcher-ipcs.ts
+++ b/src/main/ipcs/bs-launcher-ipcs.ts
@@ -1,38 +1,16 @@
 import { ipcMain } from 'electron';
-import path from "path";
-import { spawn } from 'child_process';
 import { UtilsService } from '../services/utils.service'
-import { SteamService } from '../services/steam.service';
-import { BSVersion, BSVersionManagerService } from '../services/bs-version-manager.service';
-import { BSInstallerService } from '../services/bs-installer.service'
-import { BS_EXECUTABLE, BS_APP_ID } from '../constants';
+import { LauchOption } from "../../shared/models/launch-models.model";
+import { BSLauncherService } from "../services/bs-launcher.service"
+import { IpcRequest } from 'shared/models/ipc-models.model';
 
-export interface LauchOption {
-  version: BSVersion,
-  oculus: boolean,
-  desktop: boolean,
-  debug: boolean
-}
+ipcMain.on('bs-launch.launch', (event, request: IpcRequest<LauchOption>) => {
+  const launcherService = BSLauncherService.getInstance();
+  const utilsService = UtilsService.getInstance();
 
-ipcMain.on('bs-launch.launch', async (event, args: LauchOption) => { //Create a service BSLauncherService
-  const steamService = SteamService.getInstance();
-  const installerService = BSInstallerService.getInstance();
-  let cwd = "";
-  if(!steamService.steamRunning()){ UtilsService.getInstance().ipcSend("bs-launch.launch", 1); return; }
-  if(args.version.steam){
-    cwd = await steamService.getGameFolder(BS_APP_ID, "Beat Saber");
-  }
-  else{
-    cwd = path.join(installerService.installationFolder, args.version.BSVersion);
-  }
-  const exePath = path.join(cwd, BS_EXECUTABLE);
-  if(!UtilsService.getInstance().pathExist(exePath)){ UtilsService.getInstance().ipcSend("bs-launch.launch", 2); return; }
-  
-  const launchMods = [];
-  if(args.oculus){ launchMods.push("-vrmode oculus"); }
-  if(args.debug){ launchMods.push("--verbose"); }
-  if(args.desktop){ launchMods.push("fpfc"); }
-  spawn(`\"${exePath}\"`, launchMods, {shell: true, cwd: cwd, env: {...process.env, "SteamAppId": BS_APP_ID}});
-
-  UtilsService.getInstance().ipcSend("bs-launch.launch", 0);
+  launcherService.launch(request.args).then(res => {
+    utilsService.newIpcSenc(request.responceChannel, {success: true, data: res});
+  }).catch(err => {
+    utilsService.newIpcSenc(request.responceChannel, {success: false, error: {title: err, type: 'error'}});
+  })
 });
diff --git a/src/main/services/bs-launcher.service.ts b/src/main/services/bs-launcher.service.ts
new file mode 100644
index 00000000..b4028e00
--- /dev/null
+++ b/src/main/services/bs-launcher.service.ts
@@ -0,0 +1,58 @@
+import path from "path";
+import { BsLaunchResult, LauchOption } from "shared/models/launch-models.model";
+import { BSInstallerService } from "./bs-installer.service";
+import { BSVersion } from "./bs-version-manager.service";
+import { UtilsService } from "./utils.service";
+import { BS_EXECUTABLE, BS_APP_ID } from "../constants";
+import { ChildProcessWithoutNullStreams, spawn } from "child_process";
+import { SteamService } from "./steam.service";
+
+export class BSLauncherService{
+
+    private static instance: BSLauncherService;
+
+    private readonly utilsService: UtilsService;
+    private readonly installerService: BSInstallerService;
+    private readonly steamService: SteamService;
+
+    private bsProcess: ChildProcessWithoutNullStreams;
+
+    public static getInstance(): BSLauncherService{
+        if(!BSLauncherService.instance){ BSLauncherService.instance = new BSLauncherService(); }
+        return BSLauncherService.instance;
+    }
+
+    private constructor(){
+        this.utilsService = UtilsService.getInstance();
+        this.installerService = BSInstallerService.getInstance();
+        this.steamService = SteamService.getInstance();
+    }
+
+    public isBsRunning(): boolean{
+        return this.bsProcess?.connected || this.utilsService.taskRunning(BS_EXECUTABLE);
+    }
+
+    public isExeExist(version: BSVersion): boolean{
+        const exePath = path.join(this.installerService.installationFolder, version.BSVersion, BS_EXECUTABLE);
+        return this.utilsService.pathExist(exePath);
+    }
+
+    public async launch(launchOptions: LauchOption): Promise<BsLaunchResult>{
+        if(!this.steamService.steamRunning()){ return "STEAM_NOT_RUNNING" }
+        if(!this.isExeExist(launchOptions.version)){ return "EXE_NOT_FINDED"; }
+        if(this.isBsRunning()){ return "BS_ALREADY_RUNNING" }
+
+        const cwd = launchOptions.version.steam ? await this.steamService.getGameFolder(BS_APP_ID, "Beat Saber") : path.join(this.installerService.installationFolder, launchOptions.version.BSVersion);
+        const exePath = path.join(cwd, BS_EXECUTABLE);
+        const launchMods = [launchOptions.oculus && "-vrmode oculus", launchOptions.desktop && "fpfc", launchOptions.debug && "--verbose"];
+
+        this.bsProcess = spawn(`\"${exePath}\"`, launchMods, {shell: true, cwd: cwd, env: {...process.env, "SteamAppId": BS_APP_ID}});
+
+        this.bsProcess.on('message', msg => { /** EMIT HERE **/ });
+        this.bsProcess.on('error', err => { /** EMIT HERE **/ });
+        this.bsProcess.on('exit', code => this.utilsService.newIpcSenc("bs-launch.exit", {data: code, success: true}));
+
+        return "LAUNCHED";
+    }
+
+}
\ No newline at end of file
diff --git a/src/renderer/pages/version-viewer.component.tsx b/src/renderer/pages/version-viewer.component.tsx
index a0f247a4..14e08a65 100644
--- a/src/renderer/pages/version-viewer.component.tsx
+++ b/src/renderer/pages/version-viewer.component.tsx
@@ -2,7 +2,7 @@ import { BSVersion } from '../../main/services/bs-version-manager.service';
 import { useEffect, useState } from 'react';
 import { useLocation, useNavigate } from 'react-router-dom';
 import BSLogo from '../../../assets/images/apngs/bs-logo.png';
-import { BSLauncherService, LaunchMods, LaunchResult } from '../services/bs-launcher.service';
+import { BSLauncherService, LaunchMods } from '../services/bs-launcher.service';
 import { TabNavBar } from 'renderer/components/shared/tab-nav-bar.component';
 import wipGif from "../../../assets/images/gifs/wip.gif"
 import { ConfigurationService } from 'renderer/services/configuration.service';
@@ -14,6 +14,9 @@ import { BSUninstallerService } from '../services/bs-uninstaller.service';
 import { BSVersionManagerService } from '../services/bs-version-manager.service';
 import { ModalExitCode, ModalService, ModalType } from '../services/modale.service';
 import DefautVersionImage from "../../../assets/images/default-version-img.jpg";
+import { NotificationService } from 'renderer/services/notification.service';
+import { BsDownloaderService } from 'renderer/services/bs-downloader.service';
+import { ProgressBarService } from 'renderer/services/progress-bar.service';
 
 export function VersionViewer() {
 
@@ -30,6 +33,9 @@ export function VersionViewer() {
   const bsUninstallerService = BSUninstallerService.getInstance();
   const bsVersionManagerService = BSVersionManagerService.getInstance();
   const modalService = ModalService.getInsance();
+  const notificationService = NotificationService.getInstance();
+  const bsDownloaderService = BsDownloaderService.getInstance();
+  const progressService = ProgressBarService.getInstance();
 
   const [launchRes, setLaunchRes] = useState(null);
 
@@ -73,9 +79,28 @@ export function VersionViewer() {
     }
   }
 
+  const verifyFiles = () => {
+    progressService.show(bsDownloaderService.downloadProgress$);
+    bsDownloaderService.download(state).then(res => { 
+      progressService.hide(true);
+      if(!res.success){ notificationService.notifyError({title: "Unable to verify", desc: "Unable to verify, please try later"}); }
+      else(notificationService.notifySuccess({title: "Verification complete"}));
+    })
+  }
+  
   const launchBs = () => {
     bsLauncherService.launch(state, oculusMode, desktopMode, debugMode).then(res => {
-      setLaunchRes(res);
+      if(!res.success){ notificationService.notifyError({title: 'Unable to launch', desc: res.error.title}); }
+      else if(res.data === "STEAM_NOT_RUNNING"){ notificationService.notifyWarning({title: "Steam not running", desc: "Steam must be running to launch Beat Saber."}); }
+      else if(res.data === "BS_ALREADY_RUNNING"){ notificationService.notifyWarning({title: "Beat Saber already running", desc: "Please close Beat Saber to launch."}); }
+      else if(res.data === "EXE_NOT_FINDED"){
+        notificationService.notifyError({title: "Files missing", desc: "Some files are missing, please verify the download", actions: [{id: "0", title:"Verfiy"}]}).then(res => {
+          if(res !== "0"){ return; }
+          verifyFiles();
+        });
+      }
+      else if(res.data === "LAUNCHED"){ notificationService.notifySuccess({title: "Launching..."}) }
+      else(notificationService.notifyError({title: res.data || res.error.title}));
     });
   }
 
diff --git a/src/renderer/services/bs-launcher.service.ts b/src/renderer/services/bs-launcher.service.ts
index fb78965d..04cc43e5 100644
--- a/src/renderer/services/bs-launcher.service.ts
+++ b/src/renderer/services/bs-launcher.service.ts
@@ -1,34 +1,29 @@
-import { LauchOption } from "../../main/ipcs/bs-launcher-ipcs";
+import { LauchOption } from "../../shared/models/launch-models.model";
 import { BSVersion } from "../../main/services/bs-version-manager.service";
+import { IpcService } from "./ipc.service";
+import { BsLaunchResult } from "../../shared/models/launch-models.model";
+import { IpcResponse } from "shared/models/ipc-models.model";
 
 export class BSLauncherService{
 
     private static instance: BSLauncherService;
 
+    private readonly ipcService: IpcService;
+
     public static getInstance(){
         if(!BSLauncherService.instance){ BSLauncherService.instance = new BSLauncherService(); }
         return BSLauncherService.instance;
     }
 
-    private constructor(){}
-
-    public launch(version: BSVersion, oculus: boolean, desktop: boolean, debug: boolean): Promise<any>{
-        return new Promise((resolve, reject) => {
-
-            window.electron.ipcRenderer.on('bs-launch.launch', res => {
-                resolve(res);
-            });
-            const lauchOption: LauchOption = {debug, oculus, desktop, version: version}
-            window.electron.ipcRenderer.sendMessage('bs-launch.launch', lauchOption);
-        })
+    private constructor(){
+        this.ipcService = IpcService.getInstance();
     }
 
-}
+    public launch(version: BSVersion, oculus: boolean, desktop: boolean, debug: boolean): Promise<IpcResponse<BsLaunchResult>>{
+        const lauchOption: LauchOption = {debug, oculus, desktop, version};
+        return this.ipcService.send<BsLaunchResult>("bs-launch.launch", {args: lauchOption});
+    }
 
-export enum LaunchResult {
-    LAUNCHED = 0,
-    STEAM_NOT_RUNNING = 1,
-    EXE_NOT_FIND = 2,
 }
 
 export enum LaunchMods{
diff --git a/src/shared/models/launch-models.model.ts b/src/shared/models/launch-models.model.ts
new file mode 100644
index 00000000..c5237fc3
--- /dev/null
+++ b/src/shared/models/launch-models.model.ts
@@ -0,0 +1,10 @@
+import { BSVersion } from "main/services/bs-version-manager.service";
+
+export interface LauchOption {
+    version: BSVersion,
+    oculus: boolean,
+    desktop: boolean,
+    debug: boolean
+}
+
+export type BsLaunchResult = "LAUNCHED" | "STEAM_NOT_RUNNING" | "EXE_NOT_FINDED" | "BS_ALREADY_RUNNING";
\ No newline at end of file