Thanks Vince,
I just had a talk with my manager who actually contacted your sales before. let me clarify our requirements again ..We need to build (*.ascx) controls that uses Infragistics components. our customers need to use these controls but they don't need to interact with Infragistics component directly. the customers don't need to add or modify Infragistic components during the design. they just need to interact with our controls.
each control we build will have several Infragistic components and we will create all properties that our clients might need to change to meet their business requirements.
do our customers still need to have a separate license ?
my current understanding is that they don't need a license but the problem is that they will not be able to view our controls at design time, is this true ?