Here is the msdn reference page on this:
What should be the datatypes of the argument and return parameters. I have been trying to get this working for quite some time but haven't been able to do so..
This is as far as i have come
Result := DllCall("SENSAPI.DLL\IsDestinationReachable" ,"str", url)
A Small code snippet for an answer would be really really great !!
I have read the thread by SKAN which doesnt work for me
And also the one by Jordis regarding dll call return values.
[ Moderator!: MSDN link fixed ]