diff --git a/src/vs/workbench/parts/extensions/electron-browser/extensionsAssistant.ts b/src/vs/workbench/parts/extensions/electron-browser/extensionsAssistant.ts
deleted file mode 100644
index 4de6984edf14ea879a60613e49bddb2b2b88d8a3..0000000000000000000000000000000000000000
--- a/src/vs/workbench/parts/extensions/electron-browser/extensionsAssistant.ts
+++ /dev/null
@@ -1,123 +0,0 @@
-/*---------------------------------------------------------------------------------------------
- *  Copyright (c) Microsoft Corporation. All rights reserved.
- *  Licensed under the MIT License. See License.txt in the project root for license information.
- *--------------------------------------------------------------------------------------------*/
-
-import nls = require('vs/nls');
-import Severity from 'vs/base/common/severity';
-import {onUnexpectedError} from 'vs/base/common/errors';
-import platform = require('vs/base/common/platform');
-import { forEach } from 'vs/base/common/collections';
-import { TPromise } from 'vs/base/common/winjs.base';
-import { Action } from 'vs/base/common/actions';
-import { IInstantiationService, ServicesAccessor } from 'vs/platform/instantiation/common/instantiation';
-import { IMessageService } from 'vs/platform/message/common/message';
-import { InstallAction } from 'vs/workbench/parts/extensions/electron-browser/extensionsActions';
-import { IExtensionsService, IGalleryService } from 'vs/workbench/parts/extensions/common/extensions';
-import { IEventService } from 'vs/platform/event/common/event';
-import { IStorageService, StorageScope } from 'vs/platform/storage/common/storage';
-import { EventType, EditorEvent } from 'vs/workbench/common/events';
-import { getUntitledOrFileResource } from 'vs/workbench/common/editor';
-import { IDebugService, ServiceEvents } from 'vs/workbench/parts/debug/common/debug';
-import { match } from 'vs/base/common/glob';
-
-// --- check for extensions we don't bundle by default anymore but the user might expect
-
-interface LegacyExtensionChecker {
-	(accessor: ServicesAccessor, callback: Function): any;
-}
-
-function omnisharpChecker(accessor, callback) {
-
-	const subscription = accessor.get(IEventService).addListener2(EventType.EDITOR_INPUT_CHANGED, (e: EditorEvent) => {
-		if (!e.editor || !e.editor.input) {
-			return;
-		}
-		const uri = getUntitledOrFileResource(e.editor.input);
-		if (!uri) {
-			return;
-		}
-		if (match('{**/*.cs,**/project.json,**/global.json,**/*.csproj,**/*.sln}', uri.fsPath)) {
-			subscription.dispose();
-			callback();
-		}
-	});
-}
-
-function monoDebugChecker(accessor, callback) {
-	const debugService = (<IDebugService>accessor.get(IDebugService));
-	const subscription = debugService.addListener2(ServiceEvents.TYPE_NOT_SUPPORTED, (type: string) => {
-		// mono debugging is not supported on windows, so do not offer an extension install if on windows
-		if (type === 'mono' && !platform.isWindows) {
-			subscription.dispose();
-			callback();
-		}
-	});
-}
-
-const extensionChecker: { [id: string]: LegacyExtensionChecker } = Object.create(null);
-extensionChecker['ms-vscode.csharp'] = omnisharpChecker;
-extensionChecker['ms-vscode.mono-debug'] = monoDebugChecker;
-
-export function checkForLegacyExtensionNeeds(accessor: ServicesAccessor): void {
-
-	const instantiationService = accessor.get(IInstantiationService);
-	const extensionService = accessor.get(IExtensionsService);
-	const storageService = accessor.get(IStorageService);
-	const messageService = accessor.get(IMessageService);
-	const availableExtensions = accessor.get(IGalleryService).query();
-
-	extensionService.getInstalled().then(extensions => {
-
-		// in case of manual installation
-		for (let ext of extensions) {
-			delete extensionChecker[`${ext.publisher}.${ext.name}`];
-		}
-
-		forEach(extensionChecker, entry => {
-
-			// check if we asked already once
-			const key = `extensionsAssistant/legacy/${entry.key}`;
-			const value = storageService.get(key, StorageScope.GLOBAL);
-			if (value) {
-				return;
-			}
-
-			instantiationService.invokeFunction(entry.value, () => {
-
-				availableExtensions.then(extensions => {
-					for (let ext of extensions) {
-						if (`${ext.publisher}.${ext.name}` === entry.key) {
-							return ext;
-						}
-					}
-				}).then(extension => {
-					if (!extension) {
-						return;
-					}
-
-					let message = nls.localize('hint', "'{0}' is now an extension. Would you like to install it?", extension.displayName);
-					let actions = [
-						new Action('ext.later', nls.localize('later', "Later"), undefined, true, () => TPromise.as(true)),
-						new Action('ext.no', nls.localize('no', "No"), undefined, true, () => {
-							storageService.store(key, 'OK', StorageScope.GLOBAL);
-							return TPromise.as(true);
-						}),
-						new Action('ext.install', nls.localize('yes', "Yes"), undefined, undefined, () => {
-							let actualInstall = instantiationService.createInstance(InstallAction, nls.localize('yes', "Yes"));
-							actualInstall.run(extension);
-							return TPromise.as(true).then(() => {
-								messageService.hideAll();
-								messageService.show(Severity.Info, nls.localize('extensionsInstalled', "Extension '{0}' is being installed...", extension.displayName));
-							});
-						})
-					];
-
-					// inform user and remember
-					messageService.show(Severity.Info, { message, actions });
-
-				}, onUnexpectedError);
-			});
-		});
-	});
-}
diff --git a/src/vs/workbench/parts/extensions/electron-browser/extensionsWorkbenchExtension.ts b/src/vs/workbench/parts/extensions/electron-browser/extensionsWorkbenchExtension.ts
index 0d3411c358ae057f7d63266ed1fce3308d98ed3e..5b99fc29f7984f27d7004099786737ec5a93ac40 100644
--- a/src/vs/workbench/parts/extensions/electron-browser/extensionsWorkbenchExtension.ts
+++ b/src/vs/workbench/parts/extensions/electron-browser/extensionsWorkbenchExtension.ts
@@ -19,7 +19,6 @@ import { SyncActionDescriptor } from 'vs/platform/actions/common/actions';
 import { ListExtensionsAction, InstallExtensionAction, ListOutdatedExtensionsAction, ListSuggestedExtensionsAction } from './extensionsActions';
 import { ExtensionTipsService } from './extensionTipsService';
 import { IQuickOpenRegistry, Extensions, QuickOpenHandlerDescriptor } from 'vs/workbench/browser/quickopen';
-import { checkForLegacyExtensionNeeds } from './extensionsAssistant';
 import {ipcRenderer as ipc} from 'electron';
 
 interface IInstallExtensionsRequest {
@@ -59,7 +58,6 @@ export class ExtensionsWorkbenchExtension implements IWorkbenchContribution {
 		);
 
 		if (galleryService.isEnabled()) {
-			this.instantiationService.invokeFunction(checkForLegacyExtensionNeeds);
 
 			actionRegistry.registerWorkbenchAction(new SyncActionDescriptor(InstallExtensionAction, InstallExtensionAction.ID, InstallExtensionAction.LABEL), ExtensionsLabel);