Microsoft workloads on AWS: Your complete re:Invent 2025 guide

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Are you ready to transform your Microsoft workloads with AI-powered modernization and migration capabilities? AWS re:Invent 2025 brings you an extensive lineup of sessions focused on .NET modernization, SQL Server migration, and Windows workload optimization.

As we gear up for AWS re:Invent 2025, we’re thrilled to present an extensive lineup of sessions focused on Microsoft workloads on AWS. This year’s conference features cutting-edge content around application modernization, AI integration, infrastructure and database migration, licensing ,windows workload optimization, and developer productivity and best practices.

In this blog post, we’ll highlight the must-attend sessions that will help you accelerate your Microsoft workload journey on AWS. From technical deep-dives to hands-on workshops, these sessions are designed to equip you with practical knowledge and best practices for successful cloud transformation.

Application Modernization & AI Integration

Scale Modernization with Agentic AI featuring Thomson Reuters | MAM334 | Level: 300
Type: Breakout session
Location: Monday, Dec 1 10:30 AM – 11:30 AM PST | Mandalay Bay
Join Thomson Reuters to learn how they leveraged AWS Transform for .NET to modernize 5M lines of code monthly, achieving 4x acceleration in development velocity. This session showcases how they reduced application transformation time from months to a single sprint, cut operating costs by 30%, and implemented parallel modernization at scale. You’ll also discover how AI-powered agents were used to dramatically reduce technical debt while maintaining security and performance.

Building Agentic AI applications on Amazon Bedrock using C# and .NET | MAM404 | Level: 400
Type: Builders’ session
Location: Thursday, Dec 4 11:00 AM – 12:00 PM PST | Wynn
Discover the full potential of agentic AI in your .NET applications using automated multistep reasoning provided by Amazon Bedrock Agents. Learn how to securely create sophisticated AI agents in .NET that provide access to company systems, APIs, and data sources in real-time. We’ll demonstrate practical patterns for building intelligent agents that leverage your existing .NET investments while harnessing Amazon’s powerful AI capabilities. By the end of this session, you’ll gain the necessary knowledge and confidence to build .NET Agentic AI applications that make intelligent decisions with your data, delivering immediate value to your organization.

Grupo Tress Internacional’s .NET Modernization with AWS Transform | MAM320 | Level: 300
Type: Breakout Session
Location: Thursday, Dec 4 11:30 AM – 12:30 PM PST | Wynn
Discover how Grupo Tress Internacional reduced modernization effort by 70% while migrating from .NET Framework to .NET 8 using AWS Transform for .NET. Learn about practical strategies for containerization using Amazon Elastic Container Service(Amazon ECS) and AWS Fargate, serverless implementation with AWS Lambda, DevOps methodologies for .NET applications, and empowering developers with generative AI tools.

Modernizing DMV Systems with AWS Transform: Idemia’s .NET Success story | MAM410 | Level: 400
Type: Breakout Session
Location: Monday, Dec 1 4:30 PM – 5:30 PM PST | Mandalay Bay
Learn how Idemia, serving 48 DMVs across the United States, modernized their legacy .NET Framework applications using AWS Transform, addressing 25 years of technical debt. Explore composable transformations for customized modernization, seamless integration of partner tools, and strategies for maintaining business continuity during transformation.

Infrastructure and Database migration

Full-stack SQL Server Modernization on AWS | MAM319 | Level: 300
Type: Builders’ Session
Location: Tuesday, Dec 2 3:00 PM – 4:00 PM PST | Caesars Forum
Discover how to revolutionize database modernization of SQL Server workloads to open-source databases. Explore real-world transformation scenarios showcasing automated schema conversion techniques, query optimization strategies, and migration pathways to Amazon Aurora PostgreSQL. Learn about best practices for assessment, planning, and execution, and experience hands-on examples of complex workload migrations.

From EC2 to EKS: Tipalti’s Transformation to Windows Containers on AWS | MAM339 | Level: 300
Type: Breakout Session
Location: Tuesday, Dec 2 1:30 PM – 2:30 PM PST | Caesars Forum
Follow Tipalti’s journey of transforming their traditional Windows application into a modern, containerized solution, achieving 50% performance improvement. Learn about overcoming process management challenges, implementing auto-scaling for Windows workloads, best practices for Windows containers and practical knowledge for modernizing your Windows applications.

AWS Migration journey: 2025 itinerary for Microsoft Workloads | MAM309 | Level: 300
Type: Breakout Session
Location: Wednesday, Dec 3 4:30 PM – 5:30 PM PST | MGM
Discover breakthrough migration tools designed specifically for your Microsoft ecosystem, including Active Directory and file server migration strategies, infrastructure transformation, SQL Server database migration techniques, and .NET application modernization approaches. Learn firsthand how these services and solutions streamline complex migrations, reduce manual effort, and accelerate your migration journey.

Accelerating SQL Server Modernization on AWS with Agentic AI | MAM304 | Level: 300
Type: Chalk Talk
Location: Tuesday, Dec 2 4:00 PM – 5:00 PM PST | MGM
Learn how AWS uses generative AI to automate and optimize complex schema conversions, rewrite stored procedures and business logic for cloud-native targets. Engage in interactive discussions and white boarding to design end-to-end architectures that unlock operational agility, achieve cost savings and next-generation AI-driven insights.

Workshops and Hands-on Learning

Easily port .NET Applications to Linux with AWS Transform for .NET | MAM405 | Level: 400
Type: Workshop
Location: Monday, Dec 1 3:00 PM – 5:00 PM PST | Wynn
Get hands-on experience porting a .NET Framework application to cross-platform .NET using AWS Transform for .NET. You’ll learn the step-by-step migration process from Windows to Linux, how to avoid additional licensing fees, and techniques to gain performance and security benefits.

Choose your own Modernization Adventure: From Legacy to Cloud-native | MAM311 | Level: 300
Type: Workshop
Location: Tuesday, Dec 2 12:00 PM – 2:00 PM PST | Wynn
Ready to modernize your applications but not sure where to start? This hands-on workshop guides you through compelling modernization pathways for your applications. Learn about replatforming legacy applications, containerizing with Amazon ECS/Amazon EKS, for both Windows and Linux environments, refactoring .NET code for Linux deployment, and modernizing databases for cloud-native architectures.
Discover how AI agents accelerate code refactoring and application modernization while implementing cloud-native best practices and infrastructure-as-code principles. Through real-world scenarios, you’ll explore different modernization strategies and make informed decisions about your modernization journey. Bring your laptop for an interactive experience that will equip you with practical skills for modernizing your applications using containers, implementing cloud-native patterns, modernizing database workloads, and leveraging AI-powered tools.

Accelerating .NET and SQL Server Modernization using Agentic AI | MAM303 | Level: 300
Type: Workshop
Location: Thursday, Dec 4 12:00 PM – 2:00 PM PST | Wynn
Streamline your .NET and SQL Server workloads on AWS with AI-powered automation. Learn how to transform complex deployments into simple, guided processes while maintaining AWS best practices. See how agentic AI simplifies infrastructure setup, database management, and deployment pipelines—all designed to enhance developer productivity and application reliability.

Modernize AD integrations with AWS Managed Microsoft AD Hybrid Edition | MAM324 | Level: 300
Type: Workshop
Location: Wednesday, Dec 3 4:00 PM – 6:00 PM PST | Caesars Forum
Discover powerful new capabilities of AWS Managed Microsoft AD Hybrid Edition. This hands-on workshop demonstrates seamless extension of on-premises AD environments while enabling native integration with AWS services like Amazon RDS and AWS Private CA for LDAPS. Infrastructure architects and administrators gain practical experience implementing automated workforce identity management through AWS Directory Service Data API capabilities. This comprehensive training enables customers to maintain existing AD investments while modernizing directory services, directly supporting increased workload migration velocity.

Security and Licensing Optimization

Licensing Management and Optimization on AWS | MAM321 | Level: 300
Type: Chalk Talk
Location: Thursday, Dec 4 1:00 PM – 2:00 PM PST | MGM
Join this interactive chalk talk to see a demo of new features coming to AWS License Manager: Global Licensing Insights. In this session we will also discuss Microsoft licensing best practices and collect feedback from customers and partners using AWS License Manager or other software asset management tools.

Enterprise Software Licensing and Optimization on AWS | MAM315 | Level: 300
Type: Breakout Session
Location: Monday, Dec 1 10:00 AM – 11:00 AM PST | Caesars Forum
This session dives into commercial software licensing on AWS, focusing on Microsoft workloads and cost optimization strategies. Our Microsoft Optimization and Licensing Assessment (OLA) specialists share expert insights on managing cloud licensing complexities. The session covers fully funded OLA offerings for various deployment scenarios, including the new self-serve AWS Transform Assessments. Discover how these tools provide essential right-sizing recommendations across AWS services to maximize your cloud investment.

Developer Productivity and Best Practices

Vibe Modernize your .NET Applications using AWS Transform and Kiro | MAM343 | Level: 300
Type: Code Talk
Location: Tuesday, Dec 2 1:00 PM – 2:00 PM PST | Mandalay Bay
In this live coding session, we demonstrate the modernization of a legacy .NET Framework application using AWS Transform for .NET and Kiro. Through hands-on examples, we’ll showcase how to port existing applications to modern .NET and implement efficient refactoring techniques using Kiro’s vibe coding and spec driven development capabilities. This practical demonstration will illustrate the complete modernization process, providing developers with actionable strategies to upgrade their .NET applications.

.NET Cloud Journey: Migration and Modernization Strategies | MAM317 | Level: 300
Type: Chalk Talk
Location: Wednesday, Dec 3 10:00 AM – 11:00 AM PST | MGM
In this interactive chalk talk, explore proven strategies for migrating and modernizing .NET applications on AWS, architectural patterns from Windows rehosting to cloud-native transformations, navigating the AWS service landscape for different .NET workloads, and balancing performance, scalability, and cost in .NET migrations.

Database Administrator Essentials

AWS fundamentals for the Accidental SQL Server Database Administrator | MAM308 | Level: 300
Type: Chalk Talk
Location: Monday, Dec 1 1:00 PM – 2:00 PM PST | MGM
Learn how to map DBA tasks to cloud architect roles, implement security, high availability and disaster recovery for SQL Server on AWS, use generative AI services like Amazon Q for database management, and choose the right AWS services for your SQL Server deployments.

Get Ready for re:Invent 2025

Don’t miss these opportunities to learn from AWS experts and customers who have successfully modernized and migrated their Microsoft workloads to AWS. Here’s how you can prepare:

Register for AWS re:Invent 2025
Reserve your seats for these sessions in the re:Invent Portal
Join the conversation on social media using #reInvent
Download the AWS Events mobile app to build your schedule

Additional Resources

Stay Connected

Join the #reInvent and @AWSreInvent conversation on social media and connect with other attendees!

Note: Session schedule and availability are subject to change. Please check the AWS re:Invent Session Catalog for the most up-to-date information.