diff --git a/src/IISExpress.ts b/src/IISExpress.ts
index e7005dd2..14641e0e 100644
--- a/src/IISExpress.ts
+++ b/src/IISExpress.ts
@@ -12,10 +12,11 @@ import TelemetryReporter from 'vscode-extension-telemetry';
 
 
 export interface IExpressArguments {
-	path: string;
+  path: string;
 	port: number;
 	clr: settings.clrVersion;
 	protocol: settings.protocolType;
+  config?: string;
 }
 
 export class IISExpress {
@@ -65,11 +66,12 @@ export class IISExpress {
 			clr: options.clr ? options.clr : settings.clrVersion.v40,
 
 			// If no protocol set fallback to http as opposed to https
-			protocol: options.protocol ? options.protocol : settings.protocolType.http
+			protocol: options.protocol ? options.protocol : settings.protocolType.http,
+  
+      //Path to ApplicationHost.Config
+		  config: options.config ? options.config : '';
 		};
 
-
-
 		// The path stored in options could be a relative path such as './' or './child-sub-folder'
 		// It may also include the legacy full path of the workspace rootpath
 		// Which caused issues - when checked into source control & other users did not have same folder structure
@@ -106,7 +108,13 @@ export class IISExpress {
 		// Add the site to the config (which will invoke/run from iisexpress cmd line)
 		// Not done as async - so we wait until this command completes
 		try {
-			process.execFileSync(this._iisAppCmdPath, ['add', 'site', `-name:${siteName}`, `-bindings:${this._args.protocol}://localhost:${this._args.port}`, `-physicalPath:${this._args.path}`]);
+			var siteArgs: string[] = ['add', 'site', `-name:${siteName}`, `-bindings:${this._args.protocol}://localhost:${this._args.port}`, `-physicalPath:${this._args.path}`];
+
+			if(this._args.config){
+				siteArgs.push(`/apphostconfig:${this._args.config}`);
+			}
+
+			process.execFileSync(this._iisAppCmdPath, siteArgs);
 		} catch (error:any) {
 			console.log(error);
 			this._reporter.sendTelemetryException(error, {"appCmdPath": this._iisAppCmdPath, "appCmd": `add site -name:${siteName} -bindings:${this._args.protocol}://localhost:${this._args.port} -physicalPath:${this._args.path}`});
@@ -118,7 +126,13 @@ export class IISExpress {
 		// Assign the apppool to the site
 		// appcmd set app /app.name:Site-Staging-201ec232-2906-4052-a431-727ec57b5b2e/ /applicationPool:Clr2IntegratedAppPool
 		try {
-			process.execFileSync(this._iisAppCmdPath, ['set', 'app', `/app.name:${siteName}/`, `/applicationPool:${appPool}`]);
+			var appArgs: string[] = ['set', 'app', `/app.name:${siteName}/`, `/applicationPool:${appPool}`];
+
+			if(this._args.config){
+				appArgs.push(`/apphostconfig:${this._args.config}`);
+			}
+
+			process.execFileSync(this._iisAppCmdPath, appArgs);
 		} catch (error:any) {
 			console.log(error);
 			this._reporter.sendTelemetryException(error, {"appCmdPath": this._iisAppCmdPath});
@@ -128,10 +142,16 @@ export class IISExpress {
 		telemtry.updateCountAndReport(this._context, this._reporter, telemtry.keys.start);
 		telemtry.updateCountAndReport(this._context, this._reporter, telemtry.keys.sponsorware);
 
-		// This is the magic that runs the IISExpress cmd from the appcmd config list
-		this._iisProcess = process.spawn(this._iisPath, [`-site:${siteName}`]);
+		//This is the magic that runs the IISExpress cmd from the appcmd config list
+		var iisArgs: string[] = [`-site:${siteName}`];
+		
+		if(this._args.config){
+			iisArgs.unshift(`/config:${this._args.config}`)
+		}
 
-		// Create Statusbar item & show it
+		this._iisProcess = process.spawn(this._iisPath, iisArgs);
+		
+		//Create Statusbar item & show it
 		this._statusbar = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Left);
 
 		// Set props on statusbar & show it
@@ -180,7 +200,12 @@ export class IISExpress {
 			// Delete any existing entries for the site using appcmd
 			// Not done as async - so we wait until this command completes
 			try {
-				process.execFileSync(this._iisAppCmdPath, ['delete', 'site', `${siteName}`]);
+				var deleteSiteArgs: string[] = ['delete', 'site', `${siteName}`];
+				if(this._args.config){
+					deleteSiteArgs.push(`/apphostconfig:${this._args.config}`);
+				}
+
+				process.execFileSync(this._iisAppCmdPath, deleteSiteArgs);
 			} catch (error:any) {
 				console.log(error);
 				this._reporter.sendTelemetryException(error, {"appCmdPath": this._iisAppCmdPath, "appCmd": `delete site ${siteName}`});
diff --git a/src/iisexpress-schema.json b/src/iisexpress-schema.json
index cbaa37da..70e2bd8d 100644
--- a/src/iisexpress-schema.json
+++ b/src/iisexpress-schema.json
@@ -27,6 +27,10 @@
             "type": "string",
             "description": "This property is optional & allows you to set an absolute path to the folder or subfolder as the root of your site/project for IIS Express to run. Additionally this support relative paths to the workspace folder such as ./my-sub-folder"
         },
+        "config": {
+            "type": "string",
+            "description": "This property is optional & allows you to set a path to the ApplicationHost.Config file you wish to run"
+        },
         "url": {
             "type": "string",
             "description": "This property is optional & allows you to set the URL you wish to open eg: '/about/the-team'"
diff --git a/src/settings.ts b/src/settings.ts
index de02b41a..cb314af1 100644
--- a/src/settings.ts
+++ b/src/settings.ts
@@ -5,6 +5,7 @@ import * as util from './util';
 export interface Isettings {
     port: number;
     path: string;
+    config?: string;
     url?: string;
     clr: clrVersion;
     protocol: protocolType;
@@ -45,7 +46,8 @@ export function getSettings(uri:vscode.Uri| undefined):Isettings{
         port : getRandomPort(),
         path: './',
         clr: clrVersion.v40,
-        protocol: protocolType.http
+        protocol: protocolType.http,
+        config: getLocalApplicationHostConfig()
     };
 
     let settings:Isettings;
@@ -122,6 +124,28 @@ export function getSettings(uri:vscode.Uri| undefined):Isettings{
     }
 }
 
+function getLocalApplicationHostConfig(){
+    let vscodeFilePath = vscode.workspace.rootPath + "\\.vscode\\applicationhost.config";
+    let fileExists = false;
+
+    try {
+        //Checks if local applicationhost.config file exists
+        fileExists = fs.existsSync(vscodeFilePath);
+    }
+    catch(err){
+        //Error checking if file exists
+        //Maybe permissions or something else?
+        vscode.window.showErrorMessage('Unable to check if .vscode/applicationhost.config exists');
+    }
+
+    if(fileExists){
+        //File exists
+        //Return path to local applicationhost.config file
+        return vscodeFilePath;
+    }
+
+    return "";
+}
 
 // IIS Express docs recommend ports greater than 1024
 // http://www.iis.net/learn/extensions/using-iis-express/running-iis-express-without-administrative-privileges