ResolveEventHandler and PowerShell

I am attempting to write some PowerShell scripts to help reflect over some
..NET assemblies. In order to enumerate the types of the loaded assemblies I
need to be able to handle the AppDomain.ReflectionOnlyAssemblyResolve event
which is of the delegate ResolveEventHandler with the following signature:

public Assembly ResolveEventHandler(object sender, ResolveEventArgs $e)

I know that $_ contains the ResolveEventArgs, but I can't seem to find a
suitable syntax to bind a script block to this delegate. I can only assume
that the problem is due to the return value of the delegate. I have tried
the following syntaxes:

$handler = [ResolveEventHandler] { return $null; }
$handler = [ResolveEventHandler] { return [Reflection.Assembly]$null; }
$handler = [ResolveEventHandler] { return
[Reflection.Assembly]::GetCurrentAssembly() }

All three fail that the script block could not be bound to the target
method. Is there an appropriate syntax for handling this kind of event that
I am missing?

Thanks,
Justin

On Mar 15, 2:29*pm, Justin Spindler <jspind...@xxxxxx> wrote: Hi Justin,

Unfortunately this syntax is not supported. The event support in v1 is
very basic, and can only handle void type delegates, and synchronous
events at that. The AssemblyResolve event is async and non-void as you
can see. Because async events are invoked on a non-powershell thread,
there is no runspace available to run the script because the default
runspace is kept in thread-local storage (TLS). I wrote an eventing
snapin for v1 that can handle async and sync events by using
background queue, but unfortunately it cannot handle non-void
delegates either.

- Oisin