.NET Stuff - Thomas Waldron

using System;
using System.Collections.Generic;
using System.Reflection;

public class MyClass
{
	public static void Main()
	{
		Assembly a = Assembly.LoadFile(@"C:\PathToFile\AssemblyFile.dll");
		
		WL(a.ImageRuntimeVersion);
		
		RL();
	}
	
	#region Helper methods

	private static void WL(object text, params object[] args)
	{
		Console.WriteLine(text.ToString(), args);	
	}
	
	private static void RL()
	{
		Console.ReadLine();	
	}

	#endregion
}

You may run across the scenario where you have already installed the applicable SP1 package(s) for Visual Studio 2005 SKUs on your machine, and then install a new SKU (for example, installing VSTS 2005 Tester Edition after already applying SP1 packages to VSTS 2005 Developer Edition). In this case, it is necessary to re-install the applicable SP1 package(s), as documented here:
http://blogs.msdn.com/heaths/archive/2007/03/22/vs-2005-sp1-update-for-vista-requires-vs-2005-sp1.aspx

There are two different Visual Studio 2005 SP1 packages that apply just to Visual Studio (regardless of OS being used):

• Visual Studio 2005 Express Editions SP1
  
• Visual Studio 2005 Team Suite SP1 (works on Microsoft Visual Studio 2005 Standard, Professional, and all Team Editions)