I'm trying to install SQLSharp on a SQL2005 server patched up to build 5000.

I can do it provided I mark all the assemblies as UNSAFE.

Installing on a SQL2008 server presents no problems with the assemblies in the default install of SAFE.

The SQL Server service account is in the local admins group. Probably shouldn't be, but that's another story! Anyway my initial thought was that it was some form of permissions issue but I'm clutching at straws.