diff --git a/src/vs/code/node/cliProcessMain.ts b/src/vs/code/node/cliProcessMain.ts
index c219f231823d0e6c9282d001780b79ca3293cf88..66c1703b211755f0033b3f81245d864275659864 100644
--- a/src/vs/code/node/cliProcessMain.ts
+++ b/src/vs/code/node/cliProcessMain.ts
@@ -56,8 +56,8 @@ class Main {
 			return this.listExtensions();
 		} else if (argv['install-extension']) {
 			const arg = argv['install-extension'];
-			const ids: string[] = typeof arg === 'string' ? [arg] : arg;
-			return this.installExtension(ids);
+			const args: string[] = typeof arg === 'string' ? [arg] : arg;
+			return this.installExtension(args);
 		} else if (argv['uninstall-extension']) {
 			const arg = argv['uninstall-extension'];
 			const ids: string[] = typeof arg === 'string' ? [arg] : arg;
diff --git a/src/vs/code/node/sharedProcessMain.ts b/src/vs/code/node/sharedProcessMain.ts
index 974ec23d016195a3f793e001bde4e0612da74e71..cd0785ebae232166655eb9a123f8df6760190c38 100644
--- a/src/vs/code/node/sharedProcessMain.ts
+++ b/src/vs/code/node/sharedProcessMain.ts
@@ -8,7 +8,6 @@ import * as platform from 'vs/base/common/platform';
 import product from 'vs/platform/product';
 import pkg from 'vs/platform/package';
 import { serve, Server, connect } from 'vs/base/parts/ipc/node/ipc.net';
-import { coalesce } from 'vs/base/common/arrays';
 import { TPromise } from 'vs/base/common/winjs.base';
 import { ServiceCollection } from 'vs/platform/instantiation/common/serviceCollection';
 import { SyncDescriptor } from 'vs/platform/instantiation/common/descriptors';
@@ -104,18 +103,12 @@ function main(server: Server, initData: ISharedProcessInitData): void {
 		const instantiationService2 = instantiationService.createChild(services);
 
 		instantiationService2.invokeFunction(accessor => {
-			const environmentService = accessor.get(IEnvironmentService);
 			const extensionManagementService = accessor.get(IExtensionManagementService);
 			const channel = new ExtensionManagementChannel(extensionManagementService);
 			server.registerChannel('extensions', channel);
 
 			// clean up deprecated extensions
 			(extensionManagementService as ExtensionManagementService).removeDeprecatedExtensions();
-
-			// install vsix
-			const vsixArg = environmentService.args['install-vsix'];
-			const vsix = typeof vsixArg === 'string' ? [vsixArg] : vsixArg;
-			coalesce(vsix || []).forEach(vsix => extensionManagementService.install(vsix));
 		});
 	});
 }
diff --git a/src/vs/platform/environment/node/argv.ts b/src/vs/platform/environment/node/argv.ts
index f7610b9fc71a1b35cdec83881d022edd1588c47d..166210c03a7c4c295d9c6d81d101830e40ebb971 100644
--- a/src/vs/platform/environment/node/argv.ts
+++ b/src/vs/platform/environment/node/argv.ts
@@ -31,7 +31,6 @@ export interface ParsedArgs extends minimist.ParsedArgs {
 	'list-extensions'?: boolean;
 	'install-extension'?: string | string[];
 	'uninstall-extension'?: string | string[];
-	'install-vsix'?: string | string[];
 }
 
 const options: minimist.Opts = {
@@ -43,7 +42,6 @@ const options: minimist.Opts = {
 		'extensionTestsPath',
 		'install-extension',
 		'uninstall-extension',
-		'install-vsix',
 		'debugBrkPluginHost',
 		'debugPluginHost'
 	],