Icons not appearing when running script in an RDP session

[idbirch]

I've always wondered why icons created with GuiCtrlCreateIcon don't appear if you run your script or compiled .exe in an RDP session. I though it might be the RDP experience settings but even with everything ramped up to max, icons in my GUI still don't show.

Buttons which have ImageLists applied to them (_GUICtrlButton_SetImageList) look OK and icons in message boxes also appear correctly. Is there any way to fix this behaviour?

btw, the RDP session is into a Server 2003 box from an XP machine, not sure if that has anything to do with it?

[idbirch]

I've recently revisited this and found the problem - Windows Server 2003 (and possibly other server OSs) can't seem to extract icons from within a DLL if the icon is referenced by name. I was using code like this:

GUICtrlCreateIcon($DLLPath, "Icon_User", 24, 24, 48, 48)

This resulted in no icon being displayed when the script was run on Server 2k3. XP, Vista, 7 etc were all fine. If I sub the icon name for the index, the icon appears so this is the working version for Server 2k3:

GUICtrlCreateIcon($DLLPath, -63, 24, 24, 48, 48)

Only problem now is that my 48x48 icons are showing up incredibly blurry (which I think is why I was using the icon names instead, that fixed the blur issue). Anyone have any ideas why referencing by name would give a pristine icon and using the index would cause blur?