Set up and provision Amazon Workspaces virtual desktops for each employee, implement authentication using Amazon Cognito identity pools, and instruct employees to run the application from their provisioned Workspaces virtual desktops.

Create an Auto Scaling group of Windows-based Amazon EC2 instances, join each EC2 instance to the company’s Active Directory domain, implement authentication using the on-premises Active Directory, and instruct employees to run the application using Windows remote desktop.

Use an Amazon AppStream 2.0 image builder to create an image including the application and necessary configurations, provision an AppStream 2.0 On-Demand fleet with dynamic Fleet Auto Scaling policies, implement authentication using AppStream 2.0 user pools, and instruct employees to access the application by starting browser-based AppStream 2.0 streaming sessions.

Refactor and containerize the application to run as a web-based application, deploy the application in Amazon Elastic Container Service (Amazon ECS) on AWS Fargate with step scaling policies, implement authentication using Amazon Cognito user pools, and instruct employees to run the application from their browsers.