Using procdump to listen to all exceptions doesn't work

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I want procdump to listen to all exceptions (without having to specify a process name or id).

From an example given here, I thought using the following should work:

procdump -ma -i

...but although I get the message following message:

ProcDump is now set as the Just-in-time (AeDebug) debugger.

...when an exception occurs in some process, nothing gets dumped.

The exception is intentionally thrown from the following .NET code:

using System;

namespace ProcdumpTest
{
    class Program
    {
        static void Main(string[] args)
        {
            if (ShouldAwaitKeyPress(args)) Console.ReadLine();
            Throw();
        }
        static void Throw()
        {
            throw new InvalidOperationException();
        }
        static bool ShouldAwaitKeyPress(string[] args)
        {
            var shouldAwaitKeyPress = false;
            if (args.Length > 0)
            {
               bool.TryParse(args[0], out shouldAwaitKeyPress);
            }
            return shouldAwaitKeyPress;
        }
    }
}

Compile it and run with either ProcdumpTest or ProcdumpTest false so that an exception is thrown immediately, or with ProcdumpTest true so that it waits for a keypress to throw.

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OfirD On BEST ANSWER

Solved thanks to @Sebastian's help:

I initially installed procdump under C:\Program Files, which requires admin permissions, and although I executed procdump -i -ma under a run-as-administrator cmd, procmon indicated that the dump file write-access was denied.

After changing the destination dump folder to a non-admin folder, the dump was successfuly created:

procdump -ma -i c:\path\to\some\non\admin\folder