You must have an operating system that supports .NET Framework 3.5 e.g. Windows 2000, XP, Vista and 7. The latest source targets .NET framework 4.7+ under Windows 7 onwards.
There are three ways to obtain a copy of PeggleEdit:
If you’ve gone with option 2 or 3, then you will now need to compile PeggleEdit. The solution should be readable by Visual Studio 2010 or C# Express Edition 2010. OpenSource equivalents should also work such as SharpDevelop.
If you are now at the stage where you have an executable build of PeggleEdit and all the required run-time libraries then you should be able to run PeggleEdit.
If you have any questions then take a look at the FAQ or e-mail one of the project owners / contributors.