Some time ago, I faced a different concept of file when I worked on a mainframe: one that holds multiple other files. Since then, I tried to reproduce this behavior in .NET.

In Delphi, there was always available initialization and finalization section for units. But have you ever wondered how to achieve the same using .NET?

Anyone who ever worked with Windows development before .NET should know how to load DLLs dynamically. However, it's not possible to convert function pointers to something like a delegate. So, I created a small trick to use legacy plug-ins still using PInvoke.

So far, using Win32 plug-ins in .NET involved complex solutions like using CodeDOM or another legacy DLL. Now, I came up with a pure .NET solution.

How much time do you spend to ensure user permissions? Ease the job and let Windows and Active Directory do it for you.