I have been using SSCE 3.5 in an application I am developing since it
was released, but have not needed to connect to connect to it with SSMS
until now, and I was surprised to find I was unable to do this. It
worked fine back when I was using 3.1, but now it appears to be
attempting to open the database using the 3.1 libs.

In the 'Server type' dropdown list I select 'SQL Server Compact
Edition'. The DB is not encrypted and does not have a passord.
I get the following error when I click 'Connect':

Cannot connect to
C:\Users\Chris\AppData\Local\MYAPP\Users\chris\Data\MYDB.sdf.

------------------------------
ADDITIONAL INFORMATION:

You are trying to access an older version of a SQL Server Compact
Edition database. If this is a SQL Server CE 1.0 or 2.0 database, run
upgrade.exe. If this is a SQL Server Compact Edition 3.0 or later
database, run Compact / Repair. [ Db version = 3505053,Requested version
= 3004180,File name =
C:\Users\Chris\AppData\Local\MYAPP\Users\chris\Data\MYDB.sdf ] (SQL
Server Compact Edition ADO.NET Data Provider)

3.1 had an SDK available, but I cannot find an equivalent for 3.5.
I do have VS 2008, if that is relevant.

Any help would be appreciated. Thanks,

Chris