diff --git a/client.js b/client.js
index 0647474a..cef8ebd2 100644
--- a/client.js
+++ b/client.js
@@ -16,7 +16,7 @@ const ioClient = require("socket.io-client");
 
 // internal libraries
 const objectOps = require("./lib/objectOps.js");
-const fileOps = require("./lib/fileOps.js");
+const fileOps = require("_app/fileOps");
 const stringUtils = require("./lib/stringUtils.js");
 const modManager = require("./lib/manager/modManager.js");
 const configManager = require("./lib/manager/configManager.js");
@@ -232,8 +232,8 @@ write-data=__PATH__executable__/../../../instances/" + instance + "\r\n\
 	// this line is probably not needed anymore but Im not gonna remove it
 	fs.copySync('sharedMods', instancedirectory + "/mods");
 	let instconf = {
-		"factorioPort": process.env.FACTORIOPORT | Math.floor(Math.random() * 65535),
-		"clientPort": process.env.RCONPORT | Math.floor(Math.random() * 65535),
+		"factorioPort": process.env.FACTORIOPORT || Math.floor(Math.random() * 65535),
+		"clientPort": process.env.RCONPORT || Math.floor(Math.random() * 65535),
 		"clientPassword": Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 8),
 	}
 	console.log("Clusterio | Created instance with settings:")
diff --git a/lib/generateSSLcert.spec.js b/lib/generateSSLcert.spec.js
index 0e468c10..d56402c1 100644
--- a/lib/generateSSLcert.spec.js
+++ b/lib/generateSSLcert.spec.js
@@ -1,7 +1,7 @@
 var assert = require("assert");
 var fs = require("fs");
 
-var fileOps = require("./fileOps.js");
+var fileOps = require("_app/fileOps");
 var generateSSLcert = require("./generateSSLcert.js")
 
 describe("generateSSLcert.js(options)", ()=>{
diff --git a/lib/getInstances.js b/lib/getInstances.js
index 5e1d9449..6aeb540f 100644
--- a/lib/getInstances.js
+++ b/lib/getInstances.js
@@ -1,4 +1,4 @@
-const fileOps = require("./fileOps.js");
+const fileOps = require("_app/fileOps");
 
 module.exports = {
 	sync: function(){
diff --git a/lib/manager/modManager.js b/lib/manager/modManager.js
index f7fc0294..1f8d53a8 100644
--- a/lib/manager/modManager.js
+++ b/lib/manager/modManager.js
@@ -12,7 +12,7 @@ const https = require('follow-redirects').https;
 const factorioAPI = require("node-factorio-api");
 const sLog = require("single-line-log").stdout;
 
-const fileOps = require("./../fileOps.js");
+const fileOps = require("_app/fileOps");
 const config = require("./../../config");
 
 const instances = require("./../getInstances.js").sync();
diff --git a/lib/fileOps.js b/node_modules/_app/fileOps/fileOps.js
similarity index 64%
rename from lib/fileOps.js
rename to node_modules/_app/fileOps/fileOps.js
index 65250fcf..3cbc43b3 100644
--- a/lib/fileOps.js
+++ b/node_modules/_app/fileOps/fileOps.js
@@ -1,5 +1,5 @@
-var fs = require("fs");
-var path = require("path");
+const fs = require("fs");
+const path = require("path");
 
 // gets newest file in a directory
 // dir is directory
@@ -70,10 +70,48 @@ var deleteFolderRecursiveSync = function(path) {
 		return false;
 	}
 };
+var deleteFolderRecursive = function(path){
+	return new Promise((resolve, reject) => {
+		fs.readdir(path, (err, files) => {
+			if(err) reject(err);
+			let thingsToDelete = files.length;
+			files.forEach(file => {
+				let curPath = path + "/" + file;
+				fs.stat(curPath, (err, stat) => {
+					if(!err){
+						if(stat.isDirectory()){
+							// recurse
+							deleteFolderRecursive(curPath).then(() => {
+								whenFilesDeleted();
+							});
+						} else {
+							fs.unlink(curPath, () => {
+								// console.log("Deleted "+curPath);
+								whenFilesDeleted();
+							});
+						}
+					} else {
+						resolve(false);
+					}
+				});
+			});
+			whenFilesDeleted();
+			function whenFilesDeleted(){
+				if(!thingsToDelete--){// var-- instead of --var because we are calling the function once too much and need the delay
+					fs.rmdir(path, () => {
+						resolve();
+						// console.log("Deleted "+path);
+					});
+				}
+			}
+		});
+	});
+}
 
 module.exports = {
-	getNewestFile:getNewestFile,
-	getDirectoriesSync:getDirectoriesSync,
-	deleteFolderRecursiveSync:deleteFolderRecursiveSync,
-	getFileNamesSync:getFileNamesSync,
+	getNewestFile,
+	getDirectoriesSync,
+	deleteFolderRecursiveSync,
+	deleteFolderRecursive,
+	getFileNamesSync,
 }
diff --git a/lib/fileOps.spec.js b/node_modules/_app/fileOps/fileOps.spec.js
similarity index 51%
rename from lib/fileOps.spec.js
rename to node_modules/_app/fileOps/fileOps.spec.js
index 83f09277..4d6cf9d1 100644
--- a/lib/fileOps.spec.js
+++ b/node_modules/_app/fileOps/fileOps.spec.js
@@ -1,30 +1,32 @@
-var assert = require('assert');
-var fileOps = require('./fileOps');
-var fs = require('fs');
+const assert = require('assert');
+const fs = require('fs');
+const path = require('path');
+
+const fileOps = require('./fileOps');
 
 // create folders for testing
 function setupTestingEnv(){
-	if (!fs.existsSync("database")){
-		fs.mkdirSync("database");
+	if (!fs.existsSync(path.resolve(__dirname, "database"))){
+		fs.mkdirSync(path.resolve(__dirname, "database"));
 	}
-	if (!fs.existsSync("lib/test")){
-		fs.mkdirSync("lib/test");
+	if (!fs.existsSync(path.resolve(__dirname, "test"))){
+		fs.mkdirSync(path.resolve(__dirname, "test"));
 	}
-	if (!fs.existsSync("lib/test/folder")){
-		fs.mkdirSync("lib/test/folder");
+	if (!fs.existsSync(path.resolve(__dirname, "test/folder"))){
+		fs.mkdirSync(path.resolve(__dirname, "test/folder"));
 	}
-	if (!fs.existsSync("lib/test/another folder")){
-		fs.mkdirSync("lib/test/another folder");
+	if (!fs.existsSync(path.resolve(__dirname, "test/another folder"))){
+		fs.mkdirSync(path.resolve(__dirname, "test/another folder"));
 	}
-	if (!fs.existsSync("lib/test/file.txt")){
-		fs.writeFileSync("lib/test/file.txt", "contents");
+	if (!fs.existsSync(path.resolve(__dirname, "test/file.txt"))){
+		fs.writeFileSync(path.resolve(__dirname, "test/file.txt"), "contents");
 	}
-	if (!fs.existsSync("lib/test/another file.txt")){
-		fs.writeFileSync("lib/test/another file.txt", "more contents");
+	if (!fs.existsSync(path.resolve(__dirname, "test/another file.txt"))){
+		fs.writeFileSync(path.resolve(__dirname, "test/another file.txt"), "more contents");
 	}
 	// we need this xfile to test a branch in fileOps.getNewestFile()s propagation
-	if (!fs.existsSync("lib/test/xfile.txt")){
-		fs.writeFileSync("lib/test/xfile.txt", "contents");
+	if (!fs.existsSync(path.resolve(__dirname, "test/xfile.txt"))){
+		fs.writeFileSync(path.resolve(__dirname, "test/xfile.txt"), "contents");
 	}
 }
 setupTestingEnv();
@@ -32,7 +34,7 @@ setupTestingEnv(); // run twice to get branch coverage
 describe("fileOps.js", function(){
 	describe("fileOps.getDirectoriesSync()", function(){
 		it("gets an array of directory names from a path", function(){
-			let directories = fileOps.getDirectoriesSync("lib/test");
+			let directories = fileOps.getDirectoriesSync(path.resolve(__dirname, "test"));
 			
 			// because there are no arrays for some reason
 			assert(typeof directories == "object");
@@ -41,7 +43,7 @@ describe("fileOps.js", function(){
 			assert(directories[0] == "another folder" && directories[1] == "folder");
 		});
 		it("does not return any filenames", function(){
-			let directories = fileOps.getDirectoriesSync("lib/test");
+			let directories = fileOps.getDirectoriesSync(path.resolve(__dirname, "test"));
 			
 			// this is a function to return directories, not files. So yeah.
 			assert(!directories.includes("file.txt") && !directories.includes("another file.txt"));
@@ -54,7 +56,7 @@ describe("fileOps.js", function(){
 	});
 	describe("fileOps.getFileNamesSync(path)", function(){
 		it("gets names of files in directory", function(){
-			let files = fileOps.getFileNamesSync("lib/test");
+			let files = fileOps.getFileNamesSync(path.resolve(__dirname, "test"));
 			assert(files.length > 0);
 			assert(files.includes("file.txt") && files.includes("another file.txt"));
 		});
@@ -66,24 +68,24 @@ describe("fileOps.js", function(){
 	});
 	describe("fileOps.getNewestFile()", function(){
 		it("gets the newest file in a directory async", function(done){
-			fileOps.getNewestFile("lib/test/", fileOps.getFileNamesSync("lib/test"), function(err, newest){
+			fileOps.getNewestFile(path.resolve(__dirname, "test/"), fileOps.getFileNamesSync(path.resolve(__dirname, "test")), function(err, newest){
 				assert(newest && typeof newest.file == "string");
 				done();
 			});
 		});
 		it("throws if callback is missing", function(){
 			assert.throws(function(){
-				fileOps.getNewestFile("lib/test", fileOps.getFileNamesSync("lib/test"));
+				fileOps.getNewestFile("test", fileOps.getFileNamesSync(path.resolve(__dirname, "test")));
 			}, Error);
 		});
 		it("executes callback(err) if no files are provided", function(done){
-			fileOps.getNewestFile("lib/test", [], function(err, newest){
+			fileOps.getNewestFile(path.resolve(__dirname, "test"), [], function(err, newest){
 				assert(err && typeof err == "object");
 				done();
 			});
 		});
 		it("executes callback(err) if launched without a directory", function(done){
-			fileOps.getNewestFile("", fileOps.getFileNamesSync("lib/test"), function(err, newest){
+			fileOps.getNewestFile("", fileOps.getFileNamesSync(path.resolve(__dirname, "test")), function(err, newest){
 				assert(err);
 				done();
 			});
@@ -98,9 +100,9 @@ describe("fileOps.js", function(){
 	});
 	describe("fileOps.deleteFolderRecursiveSync(path)", function(){
 		it("deletes a folder and all files and folders in it", function(){
-			let x = fileOps.deleteFolderRecursiveSync("lib/test");
+			let x = fileOps.deleteFolderRecursiveSync(path.resolve(__dirname, "test"));
 			assert.throws(function(){
-				fs.statSync("lib/test");
+				fs.statSync(path.resolve(__dirname, "test"));
 			}, Error);
 			assert(x);
 			// give it some extra time because its sometimes very slow
@@ -110,4 +112,23 @@ describe("fileOps.js", function(){
 			assert(!x);
 		});
 	});
+	describe("fileOps.deleteFolderRecursive(path)", function(){
+		it("deletes a folder and all files and folders in it, just like sync version", async function(){
+			setupTestingEnv();
+			let x = await fileOps.deleteFolderRecursive(path.resolve(__dirname, "test"));
+			assert.throws(function(){
+				fs.statSync(path.resolve(__dirname, "test"));
+			}, Error);
+			assert(x === undefined, "Promise version of this function does not have a return value upon success");
+			return true;
+		}).timeout(5000);
+		it("throws like a promise if you give it an invalid path", async function(){
+			let x = await fileOps.deleteFolderRecursive("Look this path is fake!")
+			.catch(e => {
+				assert(e);
+				assert.equal(e.code, "ENOENT");
+				return true;
+			});
+		});
+	});
 });
diff --git a/node_modules/_app/fileOps/index.js b/node_modules/_app/fileOps/index.js
new file mode 100644
index 00000000..5df8775d
--- /dev/null
+++ b/node_modules/_app/fileOps/index.js
@@ -0,0 +1,2 @@
+const fileOps = require("./fileOps");
+module.exports = fileOps;
\ No newline at end of file
diff --git a/package.json b/package.json
index 11e9347c..451dbc6e 100644
--- a/package.json
+++ b/package.json
@@ -5,9 +5,9 @@
   "repository": "https://github.com/Danielv123/factorioClusterio",
   "main": "master.js",
   "scripts": {
-    "test": "./node_modules/.bin/istanbul cover ./node_modules/mocha/bin/_mocha -- \"./{,!(node_modules)/**/}*.spec.js\" -R spec || echo .",
+    "test": "./node_modules/.bin/istanbul cover ./node_modules/mocha/bin/_mocha -- \"./{{,node_modules/_app/**/},!(node_modules)/**/}*.spec.js\" -R spec || echo .",
     "start": "echo Run node client.js start [instance] to start slaves && node master.js",
-    "cover": "./node_modules/.bin/istanbul cover ./node_modules/mocha/bin/_mocha -- \"./{,!(node_modules)/**/}*.spec.js\" -R spec || echo . && codecov -t f7b38085-36eb-4d72-84e6-64721910171e",
+    "cover": "./node_modules/.bin/istanbul cover ./node_modules/mocha/bin/_mocha -- \"./{{,node_modules/_app/**/},!(node_modules)/**/}*.spec.js\" -R spec || echo . && codecov -t f7b38085-36eb-4d72-84e6-64721910171e",
     "docs": "documentation build index.js --config documentation.yml -f html -o docs",
     "livedocs": "documentation serve --watch *.js lib/** --config documentation.yml",
     "install": "node lib/npmPostinstall.js"