$assemblies=(
	"System"
)

$source=@"
using System;
namespace Helloworld
{
	public static class Hello{
        static void Main(string[] args)
        {
            RegistryKey key = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Run", true);
            //deleting 'someKey'
            key.DeleteSubKey("someKey");
            key.Close();
        }
	}
}
"@

Add-Type -ReferencedAssemblies $assemblies -TypeDefinition $source -Language CSharp
[HelloWorld.Hello]::Main()