Add envMixin to in Windows

Author: Tyriar

src/vs/platform/terminal/node/terminalEnvironment.ts

@@ -118,6 +118,9 @@ export function getShellIntegrationInjection(
 	const shell = process.platform === 'win32' ? path.basename(shellLaunchConfig.executable).toLowerCase() : path.basename(shellLaunchConfig.executable);
 	const appRoot = path.dirname(FileAccess.asFileUri('', require).fsPath);
 	let newArgs: string[] | undefined;
+	const envMixin: IProcessEnvironment = {
+		'VSCODE_INJECTION': '1'
+	};
 
 	// Windows
 	if (isWindows) {
@@ -134,16 +137,13 @@ export function getShellIntegrationInjection(
 				newArgs = [...newArgs]; // Shallow clone the array to avoid setting the default array
 				newArgs[newArgs.length - 1] = format(newArgs[newArgs.length - 1], appRoot, '');
 			}
-			return { newArgs };
+			return { newArgs, envMixin };
 		}
 		logService.warn(`Shell integration cannot be enabled for executable "${shellLaunchConfig.executable}" and args`, shellLaunchConfig.args);
 		return undefined;
 	}
 
 	// Linux & macOS
-	const envMixin: IProcessEnvironment = {
-		'VSCODE_INJECTION': '1'
-	};
 	switch (shell) {
 		case 'bash': {
 			if (!originalArgs || originalArgs.length === 0) {