Forums Scripts & Popups mIRC's PROP thingie

I don't know if I'm posting this in the right section...
In mIRC's help under "RAW events" you have:

---
You can process non-numeric server messages by specifying the name of the event:

raw PROP:*mirc*:/echo 5 $1-

Note: You can prevent most raw server messages from printing out their default text by using the /halt command.
---

Now, I know this looks like it has a obvious answer (the 1st line from the quote) but. I can't find anything that would work with it.
Does anyone know how to use this? If so, please tell me..

i was just looking for this and see it still isn't answered.
Can anyone tell us the answer?

[edit]Actually, it's close, but not quite. I was looking for an identifier or somekind. $Numeric for the numeric part.
$props or something for non-numeric?

$prop is custom alias properties.

Raw *:*: { echo -a $gettok($rawmsg,2,32) } will return PROP for example.

Now that's out the way, IRC servers wont use PROP because that's a RAW message from IRCX (an IRC extension protocol) more information here. And here. I hope this helps.