thankyou very much
(mental not to self: ensure more than 5 hours sleep before reading delphi documents)
Sorry/Thanks to everyone
Rawny
Edit: Just to clarify say I want to set "MessengerAPI_TLB.IMessenger3.Property_[2]" to a picture "C:\Explosion.jpg" what do I write?
I don't think it works as
"MessengerAPI_TLB.IMessenger3.Property_[2] := C:\Explosion.jpg"
I need to use "set_property_" I'm guessing but how, any help would be much appreciated