A practical tour of the Windows Internal API
Native NT calls, the Win32 layer, and how user-mode code actually reaches the kernel — explained with diagrams and small C++ samples you can run today.
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We guide new developers through the Microsoft developer ecosystem with structured courses, personal coaching, and practical tutorials — so you can ship real software on the Windows platform faster.
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Whether you're writing your first C# line or shipping a production WPF application, our offering is built around the Microsoft developer stack.
Hands-on tracks covering C#, .NET, ASP.NET Core, WPF and the broader Windows platform — from fundamentals to advanced systems programming.
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Book a mentor →Long-form posts on Windows internals, IIS, Visual Studio tooling and PowerShell — written by developers who actually ship on the platform.
Read the blog →Bite-sized walkthroughs you can follow on a coffee break: setting up a stack, debugging an issue, or wiring up a new tool to your workflow.
See tutorials →From the blog
Native NT calls, the Win32 layer, and how user-mode code actually reaches the kernel — explained with diagrams and small C++ samples you can run today.
Read the article →Install, configure application pools, bind certificates, and deploy your first ASP.NET Core site — without the guesswork.
Read the article →Conditional breakpoints, tracepoints, the Parallel Stacks window, and a few shortcuts that will quietly change your day-to-day workflow.
Read the article →Build small, reusable scripts to provision projects, run test suites, and wrangle Git — all without leaving your terminal.
Read the article →Generations, the large object heap, and what actually happens during a Gen 2 collection — with profiler screenshots from a real workload.
Read the article →A pragmatic intro to data binding, commands, and view models — using a small sample app you can clone and extend.
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From dotnet new to a public URL: resource groups, App Service,
configuration, and a sane CI pipeline.
Spotting the expensive operators, knowing when to add an index, and avoiding the classic mistakes that wreck query performance.
Read the article →Why MSDN Service
MSDN Service is an independent training and mentoring company. We are not affiliated with Microsoft — we are practitioners who have spent careers shipping software on Windows and want to make the on-ramp easier for the next wave of developers.
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