System Programming with VB.Net/C#

Welcome to System Programming with VB.Net/C#

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This is a growing collection of VB.Net/C# source code and articles written and maintained by Emmet Gray. Most examples provided here are either technical demonstration projects for learning purposes, examples that perform low-level "system" functions, or complete applications that system administrators might find useful.

If you learn best by reading an example, then this web site is for you! I've written articles that provide example source code with detailed explanations and comments. The example code referenced in the articles is also available for download as a complete Visual Studio solutions.

Actually, Visual Basic and C# really aren't well suited for doing low-level system-level programming... C and C++ are probably a much better choice. However, the .Net languages are so prevalent, and so easy to read/understand, that it makes a perfect platform for providing source code to the world.

As a general rule, I do not provide compiled executable programs (programs that you can just download and immediately run). Instead I provide only the source code. That means that you'll have to have a copy of Microsoft Visual Studio in order to compile the source into usable programs. There are a few exceptions... where applications are available as fully-compiled windows installer packages. Luckily, Microsoft provides the Visual Studio Express Edition as a free download at

The source code posted here is made available free of charge as "public domain" software. There is no licensing requirement. That means you can do anything you want with this software, to include making money from it! However, that also means that there is no implied warranty and I'm under no obligation to provide you support.

As always, I welcome comments and suggestions on the stuff I write.

Recent additions to this web site:

Item Date Description 18 May 23 Demonstration of SQL Injection