>We sell a VFP software (niche market) as a per seat license and one of our client has requested a concurrent licencing price to run our soft on a Citrix server.
>
>I'm looking for a reference in regards with price because I don't know if I should multiply the price by 2, 5 or 10. I don't know how many seats per concurrent licence they will end up using really, so I don't know how much $ I could loose with this switch.
>
>Any idea or existing pattern would be greatly appreciated.
>
>TIA

Unless you have some compeling reason to honor this request, I would not do it. The client should know how many users they have that will use the system - stick with the per seat.