Okay, fixed the issue.

See http://www.humanworkflow.net/post/2009/02/27/Getting-WCF-To-Work-With-SQL-CLR-Objects-64bit-Environment.aspx for details on 64-bit environments.

If (like me) you still encounter problems with System.IdentityModel after this, try replacing the references to C:\Program Files\Reference...

I am having the same issue - deployment to a 32 bit OS is fine, but the 64 bit server presents the same error.

.NET 3.5 is installed on the server,...

Grasshopper posted usp_MoveItem containing the following snippet

IF @direction > 0

SELECT @swapid = id

FROM testsort

WHERE sort = (SELECT MIN(sort) FROM testsort WHERE sort > @mysort)

ELSE

SELECT @swapid = id

FROM testsort

WHERE sort...