diff --git a/backend.js b/backend.js
index 6a2cd99c..740caefb 100644
--- a/backend.js
+++ b/backend.js
@@ -12,6 +12,9 @@ app.on('ready', function() {
 	let startAsTray = false;
 	let isMainWinShown = false;
 	let isMainWin2shown = false;
+	let remoteLib = {};
+	let remoteVar = {};
+
 	const winData = {
 		"home" : {
 			"width" : 600,
@@ -201,8 +204,7 @@ app.on('ready', function() {
 			backgroundColor: '#060621',
 			webPreferences: {
 				webSecurity: false,
-				nodeIntegration: true,
-				nodeIntegrationInWorker: true
+				nodeIntegration: true
 			}
 		});
 		if (!maximizable) {
@@ -254,8 +256,9 @@ app.on('ready', function() {
 
 	function loadIpc() {
 		const ipc = require('electron').ipcMain;
+
 		ipc.on('remote', (event, data) => {
-			switch (data) {
+			switch (data.name) {
 				case "exit":
 					if (mainWindow2 != null) {
 						mainWindow2.destroy();
@@ -295,12 +298,133 @@ app.on('ready', function() {
 						mainWindow2.webContents.send('remote', { msg: 'reload' });
 					}
 					break;
+				case "passConfigData":
+					remoteVar.configData = data.details;
+					break;
+				case "passIgnoreIoHookVal":
+					remoteVar.ignoreIoHook = data.details;
+					break;
 				default:
-					console.log("Unhandled function - loadIpc()");
+					console.log("Unhandled function - loadIpc(): " + data);
 					mainWindow.destroy();
 					break;
 			}
 		});
+
+		ipc.on('require', (event, data) => {
+			/*
+				data.lib : string
+				data.func : string
+				data.on : string
+				data.args : array
+			*/
+			let ret = -1;
+			switch (data.lib) {
+				case "ffi":
+					if (data.func === null && data.args === null) {
+						remoteLib.ffi = require("ffi");
+						try {
+							//const { remote } = require('electron');
+							let { RTLD_NOW, RTLD_GLOBAL } = remoteLib.ffi.DynamicLibrary.FLAGS;
+							remoteLib.ffi.DynamicLibrary(
+								app.getAppPath().replace(/(\\|\/)resources(\\|\/)app\.asar/, "") + '/Processing.NDI.Lib.x64.dll',
+								RTLD_NOW | RTLD_GLOBAL
+							);
+							remoteVar.lib = remoteLib.ffi.Library(app.getAppPath().replace(/(\\|\/)resources(\\|\/)app\.asar/, "") + '/PPTNDI.dll', {
+								'init': [ 'int', [] ],
+								'destroy': [ 'int', [] ],
+								'send': [ 'int', [ "string", "bool" ] ]
+							});
+							ret = remoteVar.lib;
+						} catch(e) {
+							console.log("remoteLib failed: " + e);
+						}
+					}
+					if (data.func === "init") {
+						let ret = -1;
+						if (typeof remoteVar.lib !== 'undefined') {
+							ret = remoteVar.lib.init();
+						}
+					} else if (data.func === "destroy") {
+						let ret = -1;
+						if (typeof remoteVar.lib !== 'undefined') {
+							ret = remoteVar.lib.destroy();
+						}
+					} else if (data.func === "send") {
+						let ret = -1;
+						if (typeof remoteVar.lib !== 'undefined') {
+							ret = remoteVar.lib.send( ...data.args );
+						}
+					}
+					break;
+				case "iohook":
+					if (data.on === null && data.args === null) {
+						remoteLib.ioHook = require('iohook');
+						ret = remoteLib.ioHook;
+					} else if (data.on === "start") {
+						ret = remoteLib.ioHook.start();
+					} else if (data.on === "keyup") {
+						remoteLib.ioHook.on('keyup', event => {
+							if (typeof mainWindow2 === 'undefined' || mainWindow2 === null) return;
+							if (event.shiftKey && event.ctrlKey) {
+								let chr = String.fromCharCode( event.rawcode );
+								if (chr === "") return;
+								switch (chr) {
+									case remoteVar.configData.hotKeys.prev:
+										mainWindow2.webContents.send('remote', { msg: 'gotoPrev' });
+										break;
+									case remoteVar.configData.hotKeys.next:
+										mainWindow2.webContents.send('remote', { msg: 'gotoNext' });
+										break;
+									case remoteVar.configData.hotKeys.transparent:
+										mainWindow2.webContents.send('remote', { msg: 'update_trn' });
+										break;
+									case remoteVar.configData.hotKeys.black:
+										mainWindow2.webContents.send('remote', { msg: 'update_black' });
+										break;
+									case remoteVar.configData.hotKeys.white:
+										mainWindow2.webContents.send('remote', { msg: 'update_white' });
+										break;
+									default:
+										break;
+								}
+							}
+						});
+						ret = 1;
+					} else if (data.on === "keydown") {
+						remoteLib.ioHook.on('keydown', event => {
+							if (typeof mainWindow2 === 'undefined' || mainWindow2 === null || remoteVar.ignoreIoHook) return;
+							if (((event.altKey || event.shiftKey || event.ctrlKey || event.metaKey) && event.keycode === 63) ||
+							!(event.altKey || event.shiftKey || event.ctrlKey || event.metaKey) && (
+							event.keycode === 63 || event.keycode === 3655 || event.keycode === 3663 ||
+							event.keycode === 28 || event.keycode === 57 || event.keycode === 48 || event.keycode === 17 ||
+							event.keycode === 49 || event.keycode === 25 || event.keycode === 60999 || event.keycode === 61007 ||
+							event.keycode === 61003 || event.keycode === 61000 || event.keycode === 61005 || event.keycode === 61008
+							)) {
+								mainWindow2.webContents.send('remote', { msg: 'stdin_write_newline' });
+							}
+						});
+						ret = 1;
+					} else if (data.on === "mouseup") {
+						remoteLib.ioHook.on('mouseup', event => {
+							if (typeof mainWindow2 === 'undefined' || mainWindow2 === null || remoteVar.ignoreIoHook) return;
+							mainWindow2.webContents.send('remote', { msg: 'stdin_write_newline' });
+						});
+						ret = 1;
+					} else if (data.on === "mousewheel") {
+						remoteLib.ioHook.on('mousewheel', event => {
+							if (typeof mainWindow2 === 'undefined' || mainWindow2 === null || remoteVar.ignoreIoHook) return;
+							mainWindow2.webContents.send('remote', { msg: 'stdin_write_newline' });
+						});
+						ret = 1;
+					}
+					break;
+				default:
+					break;
+			}
+			event.returnValue = ret;
+		});
+
 	}
 
 	init();
diff --git a/frontend/client.js b/frontend/client.js
index ecf8f4a7..79bdf940 100644
--- a/frontend/client.js
+++ b/frontend/client.js
@@ -135,9 +135,8 @@ $(document).ready(function() {
 	const { remote } = require('electron');
 	const ipc = require('electron').ipcRenderer;
 	const fs = require("fs-extra");
-	const ffi = require('ffi');
+	let ffi;
 	let lib;
-	let ioHook;
 	let maxSlideNum = 0;
 	let prevSlide = 1;
 	let currentSlide = 1;
@@ -168,24 +167,16 @@ $(document).ready(function() {
 		process.chdir(remote.app.getAppPath().replace(/(\\|\/)resources(\\|\/)app\.asar/, ""));
 	} catch(e) {
 	}
-	try {
-		let { RTLD_NOW, RTLD_GLOBAL } = ffi.DynamicLibrary.FLAGS;
-		ffi.DynamicLibrary(
-			remote.app.getAppPath().replace(/(\\|\/)resources(\\|\/)app\.asar/, "") + '/Processing.NDI.Lib.x64.dll',
-			RTLD_NOW | RTLD_GLOBAL
-		);
-		lib = ffi.Library(remote.app.getAppPath().replace(/(\\|\/)resources(\\|\/)app\.asar/, "") + '/PPTNDI.dll', {
-			'init': [ 'int', [] ],
-			'destroy': [ 'int', [] ],
-			'send': [ 'int', [ "string", "bool" ] ]
-		});
-	} catch(e) {
-		alertMsg(e);
-		ipc.send('remote', "exit");
+	ffi = ipc.sendSync("require", { lib: "ffi", func: null, args: null });
+	if ( ffi === -1 ) {
+		alertMsg("DLL init failed");
+		ipc.send('remote', { name: "exit" });
 	}
-	if (lib.init() === 1) {
+
+	lib = ipc.sendSync("require", { lib: "ffi", func: "init", args: null });
+	if (lib === 1) {
 		alertMsg('Failed to create a listening server!');
-		ipc.send('remote', "exit");
+		ipc.send('remote', { name: "exit" });
 		return;
 	}
 
@@ -310,12 +301,26 @@ $(document).ready(function() {
 						return;
 					}
 					slideTranTimers[10] = setTimeout(function() {
-						lib.send(tmpDir + "/Slide" + currentSlide.toString() + ".png", false);
+						ipc.sendSync("require", {
+							lib: "ffi",
+							func: "send",
+							args: [
+								tmpDir + "/Slide" + currentSlide.toString() + ".png",
+								false
+							]
+						});
 						updateCurNext(curSli, nextSli);
 					}, 10 * parseFloat(duration) * 50);
 				}
 				slideTranTimers[i] = setTimeout(function() {
-					lib.send(tmpDir + "/t" + i.toString() + ".png", true);
+					ipc.sendSync("require", {
+						lib: "ffi",
+						func: "send",
+						args: [
+							tmpDir + "/t" + i.toString() + ".png",
+							true
+						]
+					});
 					if ( i % 2 === 0 ) {
 						let now = new Date().getTime();
 						$("img.image_picker_image:first").attr("src", tmpDir + "/t" + i.toString() + ".png?" + now);
@@ -361,7 +366,14 @@ $(document).ready(function() {
 		} else {
 			stopSlideTransition();
 			updateCurNext(curSli, nextSli);
-			lib.send(curSli, false);
+			ipc.sendSync("require", {
+				lib: "ffi",
+				func: "send",
+				args: [
+					curSli,
+					false
+				]
+			});
 		}
 		$("#slide_cnt").html("SLIDE " + currentSlide + " / " + maxSlideNum);
 		blkBool = false;
@@ -792,7 +804,14 @@ $(document).ready(function() {
 		}
 		$("img.image_picker_image:first").attr('src', dirTo);
 
-		lib.send(dirTo, false);
+		ipc.sendSync("require", {
+			lib: "ffi",
+			func: "send",
+			args: [
+				dirTo,
+				false
+			]
+		});
 	}
 
 	$('#blk').click(function() {
@@ -934,27 +953,15 @@ $(document).ready(function() {
 	}
 
 	function cleanupForExit() {
-		lib.destroy();
+		ipc.sendSync("require", { lib: "ffi", func: "destroy", args: null });
 		cleanupForTemp(false);
-		ipc.send('remote', "exit");
+		ipc.send('remote', { name: "exit" });
 	}
 
 	function registerIoHook() {
-		ioHook = require('iohook');
-		ioHook.on('keyup', event => {
-			if (event.shiftKey && event.ctrlKey) {
-				let chr = String.fromCharCode( event.rawcode );
-				if (chr === "") return;
-				switch (chr) {
-					case configData.hotKeys.prev: gotoPrev(); break;
-					case configData.hotKeys.next: gotoNext(); break;
-					case configData.hotKeys.transparent: updateBlkWhtTrn("trn"); break;
-					case configData.hotKeys.black: updateBlkWhtTrn("black"); break;
-					case configData.hotKeys.white: updateBlkWhtTrn("white"); break;
-				}
-			}
-		});
-		ioHook.start();
+		let ioHook = ipc.sendSync("require", { lib: "iohook", on: null, args: null });
+		ipc.sendSync("require", { lib: "iohook", on: "keyup", args: null });
+		ipc.sendSync("require", { lib: "iohook", on: "start", args: null });
 	}
 
 	function reflectConfig() {
@@ -970,6 +977,7 @@ $(document).ready(function() {
 			$.getJSON(configPath, function(json) {
 				configData.hotKeys = json.hotKeys;
 				configData.startWithTheFirstSlideSelected = json.startWithTheFirstSlideSelected;
+				ipc.send('remote', { name: "passConfigData", details: configData });
 			});
 		} else {
 			// Do nothing
@@ -977,34 +985,52 @@ $(document).ready(function() {
 	}
 
 	ipc.on('remote' , function(event, data){
-		if (data.msg == "exit") {
-			cleanupForExit();
-			return;
-		}
-		if (data.msg == "reload") {
-			reflectConfig();
-			return;
-		}
-		if (data.msg == "focused") {
-			let stats;
-			let tmpPptTimestamp = 0;
-			if (pptTimestamp === 0) {
-				return;
-			}
-			try {
-				stats = fs.statSync(pptPath);
-				tmpPptTimestamp = stats.mtimeMs;
-				if (pptTimestamp === tmpPptTimestamp) {
-				} else {
-					pptTimestamp = tmpPptTimestamp;
-					askReloadFile("", "This file has been modified. Do you want to reload it?", "");
+		switch (data.msg) {
+			case "exit":
+				cleanupForExit();
+				break;
+			case "reload":
+				reflectConfig();
+				break;
+			case "focused":
+				let stats;
+				let tmpPptTimestamp = 0;
+				if (pptTimestamp === 0) {
+					return;
 				}
-			} catch(e) {
-			}
-		}
-		if (data.msg == "blurred") {
-			// we don't care here
+				try {
+					stats = fs.statSync(pptPath);
+					tmpPptTimestamp = stats.mtimeMs;
+					if (pptTimestamp === tmpPptTimestamp) {
+					} else {
+						pptTimestamp = tmpPptTimestamp;
+						askReloadFile("", "This file has been modified. Do you want to reload it?", "");
+					}
+				} catch(e) {
+				}
+				break;
+			case "blurred":
+				// we don't care here
+				break;
+			case "gotoPrev":
+				gotoPrev();
+				break;
+			case "gotoNext":
+				gotoNext();
+				break;
+			case "update_trn":
+				updateBlkWhtTrn("trn");
+				break;
+			case "update_black":
+				updateBlkWhtTrn("black");
+				break;
+			case "update_white":
+				updateBlkWhtTrn("white");
+				break;
+			default:
+				break;
 		}
+		return;
 	});
 
 	$('#minimize').click(function() {
diff --git a/frontend/client_config.js b/frontend/client_config.js
index bc3ccc66..dd32325b 100644
--- a/frontend/client_config.js
+++ b/frontend/client_config.js
@@ -74,7 +74,7 @@ $(document).ready(function() {
 			if (err) {
 				alertMsg("Could not save the configuration.");
 			} else {
-				ipc.send('remote', "reflectConfig");
+				ipc.send('remote', { name: "reflectConfig" });
 				alertMsg("Saved");
 			}
 		});
@@ -96,7 +96,7 @@ $(document).ready(function() {
 	}
 
 	$('#closeImg').click(function() {
-		ipc.send('remote', "hideConfig");
+		ipc.send('remote', { name: "hideConfig" });
 	});
 	$('#saveConfig').click(function() {
 		setConfig();
diff --git a/frontend/client_control.js b/frontend/client_control.js
index 3661b88c..4597f332 100644
--- a/frontend/client_control.js
+++ b/frontend/client_control.js
@@ -286,10 +286,8 @@ $(document).ready(function() {
 	const spawn = require( 'child_process' ).spawn;
 	const ipc = require('electron').ipcRenderer;
 	const fs = require("fs-extra");
-	const ffi = require('ffi');
+	let ffi;
 	let lib;
-	let ignoreIoHook = false;
-	let ioHook = null;
 	let tmpDir = null;
 	let preFile = "";
 	let slideWidth = 0;
@@ -324,26 +322,16 @@ $(document).ready(function() {
 	}
 
 	function runLib() {
-		try {
-			const { remote } = require('electron');
-			let { RTLD_NOW, RTLD_GLOBAL } = ffi.DynamicLibrary.FLAGS;
-			ffi.DynamicLibrary(
-				remote.app.getAppPath().replace(/(\\|\/)resources(\\|\/)app\.asar/, "") + '/Processing.NDI.Lib.x64.dll',
-				RTLD_NOW | RTLD_GLOBAL
-			);
-			lib = ffi.Library(remote.app.getAppPath().replace(/(\\|\/)resources(\\|\/)app\.asar/, "") + '/PPTNDI.dll', {
-				'init': [ 'int', [] ],
-				'destroy': [ 'int', [] ],
-				'send': [ 'int', [ "string", "bool" ] ]
-			});
-		} catch(e) {
-			alertMsg(e);
-			ipc.send('remote', "exit");
+		ffi = ipc.sendSync("require", { lib: "ffi", func: null, args: null });
+		if ( ffi === -1 ) {
+			alertMsg("DLL init failed");
+			ipc.send('remote', { name: "exit" });
 		}
 
-		if (lib.init() === 1) {
+		lib = ipc.sendSync("require", { lib: "ffi", func: "init", args: null });
+		if (lib === 1) {
 			alertMsg('Failed to create a listening server!');
-			ipc.send('remote', "exit");
+			ipc.send('remote', { name: "exit" });
 			return;
 		}
 	}
@@ -400,7 +388,11 @@ $(document).ready(function() {
 		buffer = PNG.sync.write(png);
 		fs.writeFileSync(file, buffer);
 		$("#slidePreview").attr("src", file + "?" + now);
-		lib.send(file, false);
+		ipc.sendSync("require", {
+			lib: "ffi",
+			func: "send",
+			args: [ file, false ]
+		});
 	}
 
 	function updateStat(cmd, details) {
@@ -521,7 +513,11 @@ $(document).ready(function() {
 			} catch(e) {
 				console.log("file could not be generated: "+ preFile);
 			}
-			lib.send(file, false);
+			ipc.sendSync("require", {
+				lib: "ffi",
+				func: "send",
+				args: [ file, false ]
+			});
 		}
 	}
 
@@ -534,9 +530,9 @@ $(document).ready(function() {
 				break;
 			case "tran":
 				setTimeout(function() {
-					ignoreIoHook = true;
+					ignoreIoHook(true);
 					sendColorNDI("tran");
-					ignoreIoHook = false;
+					ignoreIoHook(false);
 				}, 500);
 				break;
 			case "black":
@@ -553,47 +549,17 @@ $(document).ready(function() {
 		}
 	}
 
+	function ignoreIoHook(val) {
+		ipc.sendSync("remote", { name: "passIgnoreIoHookVal", details: val });
+	}
+
 	function registerIoHook() {
-		ioHook = require('iohook');
-		ioHook.on('keyup', event => {
-			if (event.shiftKey && event.ctrlKey) {
-				let chr = String.fromCharCode( event.rawcode );
-				if (chr === "") return;
-				switch (chr) {
-					case configData.hotKeys.prev: handleHook("prev"); break;
-					case configData.hotKeys.next: handleHook("next"); break;
-					case configData.hotKeys.transparent: handleHook("tran"); break;
-					case configData.hotKeys.black: handleHook("black"); break;
-					case configData.hotKeys.white: handleHook("white"); break;
-					default: break;
-				}
-			}
-		});
-		ioHook.on('keydown', event => {
-			//console.log(event.keycode);
-			if (!ignoreIoHook) {
-				if (((event.altKey || event.shiftKey || event.ctrlKey || event.metaKey) && event.keycode === 63) ||
-				!(event.altKey || event.shiftKey || event.ctrlKey || event.metaKey) && (
-				event.keycode === 63 || event.keycode === 3655 || event.keycode === 3663 ||
-				event.keycode === 28 || event.keycode === 57 || event.keycode === 48 || event.keycode === 17 ||
-				event.keycode === 49 || event.keycode === 25 || event.keycode === 60999 || event.keycode === 61007 ||
-				event.keycode === 61003 || event.keycode === 61000 || event.keycode === 61005 || event.keycode === 61008
-				)) {
-					res.stdin.write("\n");
-				}
-			}
-		});
-		ioHook.on('mouseup', event => {
-			if (!ignoreIoHook) {
-				res.stdin.write("\n");
-			}
-		});
-		ioHook.on('mousewheel', event => {
-			if (!ignoreIoHook) {
-				res.stdin.write("\n");
-			}
-		});
-		ioHook.start();
+		let ioHook = ipc.sendSync("require", { lib: "iohook", on: null, args: null });
+		ipc.sendSync("require", { lib: "iohook", on: "keyup", args: null });
+		ipc.sendSync("require", { lib: "iohook", on: "keydown", args: null });
+		ipc.sendSync("require", { lib: "iohook", on: "mouseup", args: null });
+		ipc.sendSync("require", { lib: "iohook", on: "mousewheel", args: null });
+		ipc.sendSync("require", { lib: "iohook", on: "start", args: null });
 	}
 
 	function procTransition(file, data) {
@@ -617,7 +583,11 @@ $(document).ready(function() {
 					return;
 				}
 				slideTranTimers[10] = setTimeout(function() {
-					lib.send(tmpDir + "/Slide.png", false);
+					ipc.sendSync("require", {
+						lib: "ffi",
+						func: "send",
+						args: [ tmpDir + "/Slide.png", false ]
+					});
 					if (fs.existsSync(file)) {
 						try {
 							fs.copySync(file, preFile);
@@ -629,7 +599,11 @@ $(document).ready(function() {
 			}
 
 			slideTranTimers[i] = setTimeout(function() {
-				lib.send(tmpDir + "/t" + i.toString() + ".png", true);
+				ipc.sendSync("require", {
+					lib: "ffi",
+					func: "send",
+					args: [ tmpDir + "/t" + i.toString() + ".png", false ]
+				});
 			}, i * parseFloat(duration) * 50);
 			if (i === transLvl) {
 				const now = new Date().getTime();
@@ -759,7 +733,7 @@ $(document).ready(function() {
 		});
 
 		// Enable Always On Top by default
-		ipc.send('remote', "onTop");
+		ipc.send('remote', { name: "onTop" });
 		$("#pin").attr("src", "pin_green.png");
 		pin = true;
 
@@ -804,6 +778,7 @@ $(document).ready(function() {
 		if (fs.existsSync(configPath)) {
 			$.getJSON(configPath, function(json) {
 				configData.hotKeys = json.hotKeys;
+				ipc.send('remote', { name: "passConfigData", details: configData });
 			});
 		} else {
 			// Do nothing
@@ -811,20 +786,39 @@ $(document).ready(function() {
 	}
 
 	function cleanupForExit() {
-		lib.destroy();
+		ipc.sendSync("require", { lib: "ffi", func: "destroy", args: null });
 		cleanupForTemp();
-		ipc.send('remote', "exit");
+		ipc.send('remote', { name: "exit" });
 	}
 
 	ipc.on('remote' , function(event, data){
-		if (data.msg == "exit") {
-			cleanupForExit();
-			return;
-		}
-		if (data.msg == "reload") {
-			reflectConfig();
-			return;
+		switch (data.msg) {
+			case "exit":
+				cleanupForExit();
+				break;
+			case "reload":
+				reflectConfig();
+				break;
+			case "stdin_write_newline":
+				res.stdin.write("\n");
+				break;
+			case "gotoPrev":
+				handleHook("prev");
+				break;
+			case "gotoNext":
+				handleHook("next");
+				break;
+			case "update_trn":
+				handleHook("tran");
+				break;
+			case "update_black":
+				handleHook("black");
+				break;
+			case "update_white":
+				handleHook("white");
+				break;
 		}
+		return;
 	});
 
 	$('#closeImg').click(function() {
@@ -885,11 +879,11 @@ $(document).ready(function() {
 	
 	$('#pin').click(function() {
 		if (pin) {
-			ipc.send('remote', "onTopOff");
+			ipc.send('remote', { name: "onTopOff" });
 			$("#pin").attr("src", "pin_grey.png");
 			pin = false;
 		} else {
-			ipc.send('remote', "onTop");
+			ipc.send('remote', { name: "onTop" });
 			$("#pin").attr("src", "pin_green.png");
 			pin = true;
 		}
diff --git a/frontend/client_main.js b/frontend/client_main.js
index 949482f9..804ab949 100644
--- a/frontend/client_main.js
+++ b/frontend/client_main.js
@@ -2,12 +2,12 @@ const ipc = require('electron').ipcRenderer;
 
 $(document).ready(function() {
 	$("#select1img").click(function() {
-		ipc.send('remote', "select1");
+		ipc.send('remote', { name: "select1" });
 	});
 	$("#select2img").click(function() {
-		ipc.send('remote', "select2");
+		ipc.send('remote', { name: "select2" });
 	});
 	$("#closeImg").click(function() {
-		ipc.send('remote', "exit");
+		ipc.send('remote', { name: "exit" });
 	});
 });
\ No newline at end of file