Framework to Modern .NET
We move .NET Framework code to the current long-term support release of .NET, changing as little business logic as possible and refactoring only where APIs no longer exist.
Application Development
Legacy .NET Application Modernization
Move Legacy .NET Forward Without Losing What Works
Organizations running business-critical apps on .NET Framework come to us to move them onto modern .NET and Azure. We upgrade the runtime, replace unsupported dependencies, refresh Web Forms and MVC interfaces, and containerize where it helps, keeping proven business logic intact.
What We Deliver
Where We Make the Difference
.NET Framework applications often hold years of business rules, but they are tied to Windows servers, aging libraries, and a runtime that gets no new features. The hard parts are Windows-specific APIs, abandoned third-party components, and tight database coupling. We assess those early so the migration plan reflects the real effort.
Effort Measured Up Front
The .NET Upgrade Assistant and API compatibility analysis flag incompatible packages, Windows-only calls, and unsupported libraries, producing a remediation plan before any code changes.
Azure Hosting Options
Modernized applications run on Azure App Service, Azure Container Apps, or AKS, and moving to Linux hosting can remove the need for Windows Server licenses.
Web Forms and MVC Refresh
Legacy Web Forms and MVC front ends are rebuilt in Blazor or React on top of your existing services, giving users a modern interface without rewriting the logic underneath.
Our Approach
How We Deliver Legacy .NET Application Modernization
Step 1: Analyze the Codebase
Automated compatibility scans plus manual code review produce a findings report that ranks each issue by severity and estimates the effort to fix it.
Step 2: Plan the Upgrade Path
We set the upgrade sequence, resolve dependency conflicts, decide where containers make sense, and break the work into phases that each ship safely.
Step 3: Migrate Behind a Safety Net
A regression test suite confirms the upgraded application behaves exactly like the original at every stage, catching differences before they reach users.
Step 4: Deploy and Load-Test on Azure
We deploy to Azure, run load and performance tests against realistic traffic, tune for cloud hosting, and hand the application back to your team.
Can we upgrade without rewriting the application?
In most cases, yes. Much of a typical .NET Framework codebase ports with targeted changes. Areas like WCF services, Web Forms pages, and Windows-specific APIs need more work, and the assessment shows exactly where those are.
What happens to our WCF services?
Options include CoreWCF for a close port, or moving to gRPC or REST APIs where clients can change. We recommend an approach per service based on who calls it and how hard those clients are to update.
Do we have to move to Azure?
No. Modern .NET runs on Linux and in containers almost anywhere, including AWS and your own servers. Azure is a common target because of its .NET tooling, but hosting is your choice.
How is this different from your general modernization service?
This service goes deep on the .NET stack: runtime upgrades, WCF, Web Forms, and Windows dependencies. For portfolios that mix Java, Oracle, and other platforms, our broader application modernization service is the better fit.
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