What you need to be looking at, for controls at least, is Property Extenders: MSDN: Windows Forms Extender Provider Sample[^] MSDN: Implementing an Extender Provider[^] CodeProject: Control Extender Library[^] This should hopefully give you enough information to get you underway. --Colin Mackay-- EuroCPian Spring 2004 Get Together[^]

Apply the DesignerSerializationVisibility attribute to the Properties you need to "persist" the settings from design time to runtime. leppie::AllocCPArticle("Zee blog"); Seen on my Campus BBS: Linux is free...coz no-one wants to pay for it.

Two options: 1) Compile it into a DLL. 2) Write a wrapper using Managed C++.