.NET Development Services

IKRC builds and maintains custom .NET applications in C#: ASP.NET Core and Blazor web applications, APIs, background workers and integrations, including systems backed by SQL Server and hosted in Azure.

Where .NET fits

.NET suits line-of-business systems that will be maintained for years. The C# compiler catches type errors before release, the runtime follows a published support schedule, and it connects directly to SQL Server, Microsoft Entra ID and Azure services.

• Custom business applications and portals
• ASP.NET Core and Blazor web applications
• C# services, workers, APIs and integrations
• SQL Server-backed operational systems
• Modernization of older .NET Framework applications

Support dates to plan around

.NET 8 and .NET 9 both reach end of support on November 10, 2026. .NET 10 is a long-term support release, supported until November 14, 2028. How a security fix reaches production depends on how the app is deployed: a framework-dependent app uses the runtime installed on the server and by default rolls forward to its latest installed patch, so patching that runtime covers it unless its roll-forward setting has been changed, while a self-contained app carries its own copy of the runtime and has to be rebuilt and redeployed to pick up a fix.

An upgrade can start by listing which runtime and deployment model each application actually uses, then proceed in steps that can be tested and released separately. For the upgrade decision, read What .NET 8 and .NET 9 End of Support Means for Your Business. If the system is still on .NET Framework, the Legacy Application Modernization Guide covers moving forward without a full rewrite.