diff --git a/src/vs/workbench/api/node/apiCommands.ts b/src/vs/workbench/api/node/apiCommands.ts
index 134d74507d4..f0b8ce4cb0e 100644
--- a/src/vs/workbench/api/node/apiCommands.ts
+++ b/src/vs/workbench/api/node/apiCommands.ts
@@ -68,6 +68,25 @@ CommandsRegistry.registerCommand({
 	}
 });
 
+interface INewWindowAPICommandOptions {
+}
+
+export class NewWindowAPICommand {
+	public static ID = 'vscode.newWindow';
+	public static execute(executor: ICommandsExecutor, options?: INewWindowAPICommandOptions): Promise<any> {
+		return executor.executeCommand('_files.newWindow', [options]);
+	}
+}
+CommandsRegistry.registerCommand({
+	id: NewWindowAPICommand.ID,
+	handler: adjustHandler(NewWindowAPICommand.execute),
+	description: {
+		description: 'Opens an new window',
+		args: [
+		]
+	}
+});
+
 export class DiffAPICommand {
 	public static ID = 'vscode.diff';
 	public static execute(executor: ICommandsExecutor, left: URI, right: URI, label: string, options?: vscode.TextDocumentShowOptions): Promise<any> {
diff --git a/src/vs/workbench/contrib/files/browser/fileActions.contribution.ts b/src/vs/workbench/contrib/files/browser/fileActions.contribution.ts
index f83842f985e..a9f017e3425 100644
--- a/src/vs/workbench/contrib/files/browser/fileActions.contribution.ts
+++ b/src/vs/workbench/contrib/files/browser/fileActions.contribution.ts
@@ -10,7 +10,7 @@ import { revertLocalChangesCommand, acceptLocalChangesCommand, CONFLICT_RESOLUTI
 import { SyncActionDescriptor, MenuId, MenuRegistry, ILocalizedString } from 'vs/platform/actions/common/actions';
 import { IWorkbenchActionRegistry, Extensions as ActionExtensions } from 'vs/workbench/common/actions';
 import { KeyMod, KeyChord, KeyCode } from 'vs/base/common/keyCodes';
-import { openWindowCommand, REVEAL_IN_OS_COMMAND_ID, COPY_PATH_COMMAND_ID, REVEAL_IN_EXPLORER_COMMAND_ID, OPEN_TO_SIDE_COMMAND_ID, REVERT_FILE_COMMAND_ID, SAVE_FILE_COMMAND_ID, SAVE_FILE_LABEL, SAVE_FILE_AS_COMMAND_ID, SAVE_FILE_AS_LABEL, SAVE_ALL_IN_GROUP_COMMAND_ID, OpenEditorsGroupContext, COMPARE_WITH_SAVED_COMMAND_ID, COMPARE_RESOURCE_COMMAND_ID, SELECT_FOR_COMPARE_COMMAND_ID, ResourceSelectedForCompareContext, REVEAL_IN_OS_LABEL, DirtyEditorContext, COMPARE_SELECTED_COMMAND_ID, REMOVE_ROOT_FOLDER_COMMAND_ID, REMOVE_ROOT_FOLDER_LABEL, SAVE_FILES_COMMAND_ID, COPY_RELATIVE_PATH_COMMAND_ID, SAVE_FILE_WITHOUT_FORMATTING_COMMAND_ID, SAVE_FILE_WITHOUT_FORMATTING_LABEL } from 'vs/workbench/contrib/files/browser/fileCommands';
+import { openWindowCommand, REVEAL_IN_OS_COMMAND_ID, COPY_PATH_COMMAND_ID, REVEAL_IN_EXPLORER_COMMAND_ID, OPEN_TO_SIDE_COMMAND_ID, REVERT_FILE_COMMAND_ID, SAVE_FILE_COMMAND_ID, SAVE_FILE_LABEL, SAVE_FILE_AS_COMMAND_ID, SAVE_FILE_AS_LABEL, SAVE_ALL_IN_GROUP_COMMAND_ID, OpenEditorsGroupContext, COMPARE_WITH_SAVED_COMMAND_ID, COMPARE_RESOURCE_COMMAND_ID, SELECT_FOR_COMPARE_COMMAND_ID, ResourceSelectedForCompareContext, REVEAL_IN_OS_LABEL, DirtyEditorContext, COMPARE_SELECTED_COMMAND_ID, REMOVE_ROOT_FOLDER_COMMAND_ID, REMOVE_ROOT_FOLDER_LABEL, SAVE_FILES_COMMAND_ID, COPY_RELATIVE_PATH_COMMAND_ID, SAVE_FILE_WITHOUT_FORMATTING_COMMAND_ID, SAVE_FILE_WITHOUT_FORMATTING_LABEL, newWindowCommand } from 'vs/workbench/contrib/files/browser/fileCommands';
 import { CommandsRegistry, ICommandHandler } from 'vs/platform/commands/common/commands';
 import { ContextKeyExpr } from 'vs/platform/contextkey/common/contextkey';
 import { KeybindingsRegistry, KeybindingWeight } from 'vs/platform/keybinding/common/keybindingsRegistry';
@@ -43,6 +43,7 @@ registry.registerWorkbenchAction(new SyncActionDescriptor(ToggleAutoSaveAction,
 
 // Commands
 CommandsRegistry.registerCommand('_files.windowOpen', openWindowCommand);
+CommandsRegistry.registerCommand('_files.newWindow', newWindowCommand);
 
 const explorerCommandsWeightBonus = 10; // give our commands a little bit more weight over other default list/tree commands
 
diff --git a/src/vs/workbench/contrib/files/browser/fileCommands.ts b/src/vs/workbench/contrib/files/browser/fileCommands.ts
index e019da14cfd..59922c1a405 100644
--- a/src/vs/workbench/contrib/files/browser/fileCommands.ts
+++ b/src/vs/workbench/contrib/files/browser/fileCommands.ts
@@ -6,7 +6,7 @@
 import * as nls from 'vs/nls';
 import { URI } from 'vs/base/common/uri';
 import { toResource, IEditorCommandsContext } from 'vs/workbench/common/editor';
-import { IWindowsService, IWindowService, IURIToOpen, IOpenSettings } from 'vs/platform/windows/common/windows';
+import { IWindowsService, IWindowService, IURIToOpen, IOpenSettings, INewWindowOptions } from 'vs/platform/windows/common/windows';
 import { ServicesAccessor, IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 import { IViewletService } from 'vs/workbench/services/viewlet/browser/viewlet';
 import { IWorkspaceContextService } from 'vs/platform/workspace/common/workspace';
@@ -83,6 +83,11 @@ export const openWindowCommand = (accessor: ServicesAccessor, urisToOpen: IURITo
 	}
 };
 
+export const newWindowCommand = (accessor: ServicesAccessor, options?: INewWindowOptions) => {
+	const windowsService = accessor.get(IWindowsService);
+	windowsService.openNewWindow(options);
+};
+
 function save(
 	resource: URI | null,
 	isSaveAs: boolean,