PInvoke.net, meaning Platform Invoke, is a wiki used by around 50,000 .NET developers a month to find and contribute PInvoke signatures (also known as Declare statements in VB), type definitions, and any other information related to calling Win32, or other unmanaged APIs in managed code (languages such as C# or VB.NET). As a wiki, it is user driven and acts as a repository where developers can contribute or retrieve information as they wish.
Copy & Paste your way to productivity
Certain things just can't be done in pure .NET, and the developer has to drill down to the Windows API. This is achieved through .NET's Platform Invoke (PInvoke) functionality, which requires declarations to be supplied by the developer. Manually defining and using PInvoke signatures is an error-prone process that can introduce extremely subtle bugs. PInvoke.net supplies you with tried and tested signatures and type definitions, so that you don't have to spend time writing them from scratch.
Access PInvoke.net directly from within Visual Studio
Download the PInvoke.net add-in for Visual Studio 2010, 2012, 2013, and 2015, and save yourself the effort of having to open up a web browser to search for the PInvoke.net website. You can now insert a PInvoke signature with the click of a button while you're working on your application in Visual Studio.
You can find out more - and download the Add-in - on http://www.pinvoke.net/