After recently discovering how insanely long the .net 3.5 framework was to install I searched for and found what I thought was a solution - the 'client only framework subset'.
This claims to include WPF etc, all the typical things required by 'Client Applications'.
Our application makes use of Client Application Services
(see here: http://msdn.microsoft.com/en-us/library/bb384297.aspx)
Unfortunately it seems that the "Client only subset" doesn't inlucde such things as System.Web.ClientServices.
Am I missing something?