Well I just used VS2010 to connect to the a SQL CE 3.5 database this is the connection string it generated.
connectionString="Data Source=C:\Program Files\Microsoft SQL Server Compact Edition\v3.5\Samples\Northwind.sdf"
providerName="Microsoft.SqlServerCe.Client.3.5" />
Here is one example referencing the OLEDB provider from that site:
Type: OLE DB Provider
Usage: Provider=Microsoft.SQLSERVER.CE.OLEDB.3.5
Provider=Microsoft.SQLSERVER.CE.OLEDB.3.5;Data Source=myPath\myData.sdf;
All of this suggests to me there are providers....
Hope this is of help
Regards
John W.
Edited by jkwrpc - 05 Aug 2011 at 6:25am