Line-of-business applications
Internal systems with complex rules, approvals, reporting and integrations.
Microsoft .NET development
Microsoft .NET development. For systems built to last.
.NET is Microsoft’s platform for business software, written in C#. It suits long-lived systems, Microsoft-centred organisations and work that benefits from strict typing and strong tooling.
Choosing Microsoft .NET
A good fit when
- Your organisation runs on Microsoft: Azure, SQL Server, Active Directory, Microsoft 365.
- The system is long-lived, with complex rules that benefit from a strictly typed language.
- You have .NET Framework applications that need a supported future.
Think again when
- It is a quick first release on a small budget. Laravel usually gets there sooner. See Laravel
- Your team is all JavaScript. One language across the stack will be easier to staff. See Node.js
01 / What we build
What we build with Microsoft .NET.
APIs and services
ASP.NET Core back ends for web and mobile apps, on Azure, AWS or your own servers.
.NET Framework modernisation
Moving older Framework and Web Forms applications to current .NET in stages.
Microsoft integrations
Sign-in with Microsoft Entra ID, SQL Server data and connections to Microsoft 365.
02 / How it connects
What it connects to, and what to plan for.
Typical integrations
- SQL Server and PostgreSQL
- Azure
- Microsoft Entra ID
- Angular and React front ends
- REST and gRPC
- Microsoft 365
Often scoped alongside
Plan for these
Release cadence
.NET ships a new version every November. Even-numbered versions are supported for three years, odd ones for less. We build on the long-term release.
Framework is not modern .NET
Old .NET Framework code does not run unchanged on current .NET. Web Forms and WCF have to be replaced, not ported.
Licences around it
.NET is free and open source, but SQL Server and Windows Server licences add cost. PostgreSQL on Linux avoids them.
03 / Proof
Microsoft .NET work you can check.
Client delivery / Agritech
UNIVIA: ASP.NET in a live platform.
Three connected products for an agricultural supply chain: a farmer app, a partner app and a staff control panel. The stack includes ASP.NET and PHP with native mobile apps.
Read the UNIVIA case studyAlso in Microsoft .NET: Property-verification platform
Further reading
Guides that go deeper.
Legacy System Modernization: Rewrite, Refactor or Replace?
A decision framework for legacy modernization — when to rewrite, refactor, replatform or replace, with cost ranges, risk profiles and a scoring model.
Read insightA little clarity
Microsoft .NET questions, answered plainly.
What is Microsoft .NET development, and how does it benefit businesses?
.NET is Microsoft’s free, open-source platform for building software in C#. It runs on Windows and Linux. Businesses choose it for long support periods, strong tooling and a close fit with Azure, SQL Server and Microsoft sign-in. It is a sound base for systems expected to run for many years.
Can NSDBytes develop custom solutions using Microsoft .NET?
Yes. Published examples include UNIVIA, whose stack includes ASP.NET, and a real-estate verification platform with a .NET back end. New work is built on current .NET with ASP.NET Core.
Is .NET suitable for building cloud-based applications?
Yes. Modern .NET runs in Linux containers and on serverless platforms, and is supported on Azure, AWS and Google Cloud. Azure has the closest integration. Older .NET Framework applications are tied to Windows and usually need modernising before they can move to the cloud cheaply.
How does NSDBytes ensure the quality and security of .NET applications?
Through ordinary discipline, not a guarantee: code review, automated tests around the business rules, static analysis, dependency updates and the framework’s built-in protections for sign-in and data access. For regulated products we work alongside the assessor or auditor you appoint.
Can NSDBytes upgrade existing .NET applications to the latest framework?
Yes. Moves between recent .NET versions are usually small. Moving from .NET Framework is a real migration, because Web Forms, WCF and some libraries have no direct equivalent. We assess the code first, then move it in stages while the current system keeps running.
Start wherever you are
Bring the .NET system, old or new.
Tell us what it runs on and what must change. We will say whether to extend it, modernise it or start again before we quote.